Server Error<\/title>\n\n <style>\n \/*! normalize.css v8.0.1 | MIT License | github.com\/necolas\/normalize.css *\/html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}code{font-family:monospace,monospace;font-size:1em}[hidden]{display:none}html{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}*,:after,:before{box-sizing:border-box;border:0 solid #e2e8f0}a{color:inherit;text-decoration:inherit}code{font-family:Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}svg,video{display:block;vertical-align:middle}video{max-width:100%;height:auto}.bg-white{--bg-opacity:1;background-color:#fff;background-color:rgba(255,255,255,var(--bg-opacity))}.bg-gray-100{--bg-opacity:1;background-color:#f7fafc;background-color:rgba(247,250,252,var(--bg-opacity))}.border-gray-200{--border-opacity:1;border-color:#edf2f7;border-color:rgba(237,242,247,var(--border-opacity))}.border-gray-400{--border-opacity:1;border-color:#cbd5e0;border-color:rgba(203,213,224,var(--border-opacity))}.border-t{border-top-width:1px}.border-r{border-right-width:1px}.flex{display:flex}.grid{display:grid}.hidden{display:none}.items-center{align-items:center}.justify-center{justify-content:center}.font-semibold{font-weight:600}.h-5{height:1.25rem}.h-8{height:2rem}.h-16{height:4rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.leading-7{line-height:1.75rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-1{margin-left:.25rem}.mt-2{margin-top:.5rem}.mr-2{margin-right:.5rem}.ml-2{margin-left:.5rem}.mt-4{margin-top:1rem}.ml-4{margin-left:1rem}.mt-8{margin-top:2rem}.ml-12{margin-left:3rem}.-mt-px{margin-top:-1px}.max-w-xl{max-width:36rem}.max-w-6xl{max-width:72rem}.min-h-screen{min-height:100vh}.overflow-hidden{overflow:hidden}.p-6{padding:1.5rem}.py-4{padding-top:1rem;padding-bottom:1rem}.px-4{padding-left:1rem;padding-right:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.pt-8{padding-top:2rem}.fixed{position:fixed}.relative{position:relative}.top-0{top:0}.right-0{right:0}.shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06)}.text-center{text-align:center}.text-gray-200{--text-opacity:1;color:#edf2f7;color:rgba(237,242,247,var(--text-opacity))}.text-gray-300{--text-opacity:1;color:#e2e8f0;color:rgba(226,232,240,var(--text-opacity))}.text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.text-gray-500{--text-opacity:1;color:#a0aec0;color:rgba(160,174,192,var(--text-opacity))}.text-gray-600{--text-opacity:1;color:#718096;color:rgba(113,128,150,var(--text-opacity))}.text-gray-700{--text-opacity:1;color:#4a5568;color:rgba(74,85,104,var(--text-opacity))}.text-gray-900{--text-opacity:1;color:#1a202c;color:rgba(26,32,44,var(--text-opacity))}.uppercase{text-transform:uppercase}.underline{text-decoration:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.tracking-wider{letter-spacing:.05em}.w-5{width:1.25rem}.w-8{width:2rem}.w-auto{width:auto}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}@-webkit-keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@-webkit-keyframes ping{0%{transform:scale(1);opacity:1}75%,to{transform:scale(2);opacity:0}}@keyframes ping{0%{transform:scale(1);opacity:1}75%,to{transform:scale(2);opacity:0}}@-webkit-keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@-webkit-keyframes bounce{0%,to{transform:translateY(-25%);-webkit-animation-timing-function:cubic-bezier(.8,0,1,1);animation-timing-function:cubic-bezier(.8,0,1,1)}50%{transform:translateY(0);-webkit-animation-timing-function:cubic-bezier(0,0,.2,1);animation-timing-function:cubic-bezier(0,0,.2,1)}}@keyframes bounce{0%,to{transform:translateY(-25%);-webkit-animation-timing-function:cubic-bezier(.8,0,1,1);animation-timing-function:cubic-bezier(.8,0,1,1)}50%{transform:translateY(0);-webkit-animation-timing-function:cubic-bezier(0,0,.2,1);animation-timing-function:cubic-bezier(0,0,.2,1)}}@media (min-width:640px){.sm\\:rounded-lg{border-radius:.5rem}.sm\\:block{display:block}.sm\\:items-center{align-items:center}.sm\\:justify-start{justify-content:flex-start}.sm\\:justify-between{justify-content:space-between}.sm\\:h-20{height:5rem}.sm\\:ml-0{margin-left:0}.sm\\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\\:pt-0{padding-top:0}.sm\\:text-left{text-align:left}.sm\\:text-right{text-align:right}}@media (min-width:768px){.md\\:border-t-0{border-top-width:0}.md\\:border-l{border-left-width:1px}.md\\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.lg\\:px-8{padding-left:2rem;padding-right:2rem}}@media (prefers-color-scheme:dark){.dark\\:bg-gray-800{--bg-opacity:1;background-color:#2d3748;background-color:rgba(45,55,72,var(--bg-opacity))}.dark\\:bg-gray-900{--bg-opacity:1;background-color:#1a202c;background-color:rgba(26,32,44,var(--bg-opacity))}.dark\\:border-gray-700{--border-opacity:1;border-color:#4a5568;border-color:rgba(74,85,104,var(--border-opacity))}.dark\\:text-white{--text-opacity:1;color:#fff;color:rgba(255,255,255,var(--text-opacity))}.dark\\:text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}}\n <\/style>\n\n <style>\n body {\n font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, \"Noto Sans\", sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\";\n }\n <\/style>\n <\/head>\n <body class=\"antialiased\">\n <div class=\"relative flex items-top justify-center min-h-screen bg-gray-100 dark:bg-gray-900 sm:items-center sm:pt-0\">\n <div class=\"max-w-xl mx-auto sm:px-6 lg:px-8\">\n <div class=\"flex items-center pt-8 sm:justify-start sm:pt-0\">\n <div class=\"px-4 text-lg text-gray-500 border-r border-gray-400 tracking-wider\">\n 500 <\/div>\n\n <div class=\"ml-4 text-lg text-gray-500 uppercase tracking-wider\">\n Server Error <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/body>\n<\/html>\n<div id=\"BookReader\"><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-11303","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\n<title>Search academic texts - National Repository of Academic Texts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nrat.ukrintei.ua\/searchdb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nrat.ukrintei.ua\/searchdb\/\" \/>\n<meta property=\"og:site_name\" content=\"National Repository of Academic Texts\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/groups\/578991159108587\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-26T14:53:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2019\/12\/cropped-logo.png?fit=361%2C394&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"361\" \/>\n\t<meta property=\"og:image:height\" content=\"394\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@NRAT_UA\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/\",\"url\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/\",\"name\":\"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts\",\"isPartOf\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#website\"},\"datePublished\":\"2021-03-26T17:54:53+00:00\",\"dateModified\":\"2025-05-26T14:53:21+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/nrat.ukrintei.ua\/searchdb\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/nrat.ukrintei.ua\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#website\",\"url\":\"https:\/\/nrat.ukrintei.ua\/\",\"name\":\"National Repository of Academic Texts\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#organization\"},\"alternateName\":\"NRAT\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/nrat.ukrintei.ua\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#organization\",\"name\":\"National Repository of Academic Texts\",\"alternateName\":\"NRAT\",\"url\":\"https:\/\/nrat.ukrintei.ua\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1\",\"width\":275,\"height\":300,\"caption\":\"National Repository of Academic Texts\"},\"image\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/groups\/578991159108587\/\",\"https:\/\/x.com\/NRAT_UA\",\"https:\/\/t.me\/NationalRepository\",\"https:\/\/mastodon.social\/@es2023\",\"https:\/\/www.threads.net\/@202307es\"],\"publishingPrinciples\":\"https:\/\/nrat.ukrintei.ua\/polityka-nrat\/\",\"ownershipFundingInfo\":\"https:\/\/nrat.ukrintei.ua\/pro-nrat\/polozhennya\/\",\"actionableFeedbackPolicy\":\"https:\/\/nrat.ukrintei.ua\/feedback\/\",\"correctionsPolicy\":\"https:\/\/nrat.ukrintei.ua\/feedback\/\"}]}<\/script>\n","yoast_head_json":{"title":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nrat.ukrintei.ua\/searchdb\/","og_locale":"en_US","og_type":"article","og_title":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:]","og_url":"https:\/\/nrat.ukrintei.ua\/searchdb\/","og_site_name":"National Repository of Academic Texts","article_publisher":"https:\/\/www.facebook.com\/groups\/578991159108587\/","article_modified_time":"2025-05-26T14:53:21+00:00","og_image":[{"width":361,"height":394,"url":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2019\/12\/cropped-logo.png?fit=361%2C394&ssl=1","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_site":"@NRAT_UA","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/","url":"https:\/\/nrat.ukrintei.ua\/searchdb\/","name":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts","isPartOf":{"@id":"https:\/\/nrat.ukrintei.ua\/#website"},"datePublished":"2021-03-26T17:54:53+00:00","dateModified":"2025-05-26T14:53:21+00:00","breadcrumb":{"@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nrat.ukrintei.ua\/searchdb\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/nrat.ukrintei.ua\/"},{"@type":"ListItem","position":2,"name":"\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432"}]},{"@type":"WebSite","@id":"https:\/\/nrat.ukrintei.ua\/#website","url":"https:\/\/nrat.ukrintei.ua\/","name":"National Repository of Academic Texts","description":"","publisher":{"@id":"https:\/\/nrat.ukrintei.ua\/#organization"},"alternateName":"NRAT","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nrat.ukrintei.ua\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/nrat.ukrintei.ua\/#organization","name":"National Repository of Academic Texts","alternateName":"NRAT","url":"https:\/\/nrat.ukrintei.ua\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1","contentUrl":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1","width":275,"height":300,"caption":"National Repository of Academic Texts"},"image":{"@id":"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/groups\/578991159108587\/","https:\/\/x.com\/NRAT_UA","https:\/\/t.me\/NationalRepository","https:\/\/mastodon.social\/@es2023","https:\/\/www.threads.net\/@202307es"],"publishingPrinciples":"https:\/\/nrat.ukrintei.ua\/polityka-nrat\/","ownershipFundingInfo":"https:\/\/nrat.ukrintei.ua\/pro-nrat\/polozhennya\/","actionableFeedbackPolicy":"https:\/\/nrat.ukrintei.ua\/feedback\/","correctionsPolicy":"https:\/\/nrat.ukrintei.ua\/feedback\/"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages\/11303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/comments?post=11303"}],"version-history":[{"count":0,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages\/11303\/revisions"}],"wp:attachment":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/media?parent=11303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":11303,"date":"2021-03-26T19:54:53","date_gmt":"2021-03-26T17:54:53","guid":{"rendered":"http:\/\/nrat.ukrintei.ua\/?page_id=11303"},"modified":"2025-05-26T17:53:21","modified_gmt":"2025-05-26T14:53:21","slug":"searchdb","status":"publish","type":"page","link":"https:\/\/nrat.ukrintei.ua\/en\/searchdb\/","title":{"rendered":"Search academic texts"},"content":{"rendered":"\n\n \n \n \n\n Server Error<\/title>\n\n <style>\n \/*! normalize.css v8.0.1 | MIT License | github.com\/necolas\/normalize.css *\/html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}a{background-color:transparent}code{font-family:monospace,monospace;font-size:1em}[hidden]{display:none}html{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}*,:after,:before{box-sizing:border-box;border:0 solid #e2e8f0}a{color:inherit;text-decoration:inherit}code{font-family:Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}svg,video{display:block;vertical-align:middle}video{max-width:100%;height:auto}.bg-white{--bg-opacity:1;background-color:#fff;background-color:rgba(255,255,255,var(--bg-opacity))}.bg-gray-100{--bg-opacity:1;background-color:#f7fafc;background-color:rgba(247,250,252,var(--bg-opacity))}.border-gray-200{--border-opacity:1;border-color:#edf2f7;border-color:rgba(237,242,247,var(--border-opacity))}.border-gray-400{--border-opacity:1;border-color:#cbd5e0;border-color:rgba(203,213,224,var(--border-opacity))}.border-t{border-top-width:1px}.border-r{border-right-width:1px}.flex{display:flex}.grid{display:grid}.hidden{display:none}.items-center{align-items:center}.justify-center{justify-content:center}.font-semibold{font-weight:600}.h-5{height:1.25rem}.h-8{height:2rem}.h-16{height:4rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.leading-7{line-height:1.75rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-1{margin-left:.25rem}.mt-2{margin-top:.5rem}.mr-2{margin-right:.5rem}.ml-2{margin-left:.5rem}.mt-4{margin-top:1rem}.ml-4{margin-left:1rem}.mt-8{margin-top:2rem}.ml-12{margin-left:3rem}.-mt-px{margin-top:-1px}.max-w-xl{max-width:36rem}.max-w-6xl{max-width:72rem}.min-h-screen{min-height:100vh}.overflow-hidden{overflow:hidden}.p-6{padding:1.5rem}.py-4{padding-top:1rem;padding-bottom:1rem}.px-4{padding-left:1rem;padding-right:1rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.pt-8{padding-top:2rem}.fixed{position:fixed}.relative{position:relative}.top-0{top:0}.right-0{right:0}.shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06)}.text-center{text-align:center}.text-gray-200{--text-opacity:1;color:#edf2f7;color:rgba(237,242,247,var(--text-opacity))}.text-gray-300{--text-opacity:1;color:#e2e8f0;color:rgba(226,232,240,var(--text-opacity))}.text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}.text-gray-500{--text-opacity:1;color:#a0aec0;color:rgba(160,174,192,var(--text-opacity))}.text-gray-600{--text-opacity:1;color:#718096;color:rgba(113,128,150,var(--text-opacity))}.text-gray-700{--text-opacity:1;color:#4a5568;color:rgba(74,85,104,var(--text-opacity))}.text-gray-900{--text-opacity:1;color:#1a202c;color:rgba(26,32,44,var(--text-opacity))}.uppercase{text-transform:uppercase}.underline{text-decoration:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.tracking-wider{letter-spacing:.05em}.w-5{width:1.25rem}.w-8{width:2rem}.w-auto{width:auto}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}@-webkit-keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@-webkit-keyframes ping{0%{transform:scale(1);opacity:1}75%,to{transform:scale(2);opacity:0}}@keyframes ping{0%{transform:scale(1);opacity:1}75%,to{transform:scale(2);opacity:0}}@-webkit-keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@-webkit-keyframes bounce{0%,to{transform:translateY(-25%);-webkit-animation-timing-function:cubic-bezier(.8,0,1,1);animation-timing-function:cubic-bezier(.8,0,1,1)}50%{transform:translateY(0);-webkit-animation-timing-function:cubic-bezier(0,0,.2,1);animation-timing-function:cubic-bezier(0,0,.2,1)}}@keyframes bounce{0%,to{transform:translateY(-25%);-webkit-animation-timing-function:cubic-bezier(.8,0,1,1);animation-timing-function:cubic-bezier(.8,0,1,1)}50%{transform:translateY(0);-webkit-animation-timing-function:cubic-bezier(0,0,.2,1);animation-timing-function:cubic-bezier(0,0,.2,1)}}@media (min-width:640px){.sm\\:rounded-lg{border-radius:.5rem}.sm\\:block{display:block}.sm\\:items-center{align-items:center}.sm\\:justify-start{justify-content:flex-start}.sm\\:justify-between{justify-content:space-between}.sm\\:h-20{height:5rem}.sm\\:ml-0{margin-left:0}.sm\\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\\:pt-0{padding-top:0}.sm\\:text-left{text-align:left}.sm\\:text-right{text-align:right}}@media (min-width:768px){.md\\:border-t-0{border-top-width:0}.md\\:border-l{border-left-width:1px}.md\\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.lg\\:px-8{padding-left:2rem;padding-right:2rem}}@media (prefers-color-scheme:dark){.dark\\:bg-gray-800{--bg-opacity:1;background-color:#2d3748;background-color:rgba(45,55,72,var(--bg-opacity))}.dark\\:bg-gray-900{--bg-opacity:1;background-color:#1a202c;background-color:rgba(26,32,44,var(--bg-opacity))}.dark\\:border-gray-700{--border-opacity:1;border-color:#4a5568;border-color:rgba(74,85,104,var(--border-opacity))}.dark\\:text-white{--text-opacity:1;color:#fff;color:rgba(255,255,255,var(--text-opacity))}.dark\\:text-gray-400{--text-opacity:1;color:#cbd5e0;color:rgba(203,213,224,var(--text-opacity))}}\n <\/style>\n\n <style>\n body {\n font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, \"Noto Sans\", sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\";\n }\n <\/style>\n <\/head>\n <body class=\"antialiased\">\n <div class=\"relative flex items-top justify-center min-h-screen bg-gray-100 dark:bg-gray-900 sm:items-center sm:pt-0\">\n <div class=\"max-w-xl mx-auto sm:px-6 lg:px-8\">\n <div class=\"flex items-center pt-8 sm:justify-start sm:pt-0\">\n <div class=\"px-4 text-lg text-gray-500 border-r border-gray-400 tracking-wider\">\n 500 <\/div>\n\n <div class=\"ml-4 text-lg text-gray-500 uppercase tracking-wider\">\n Server Error <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/body>\n<\/html>\n<div id=\"BookReader\"><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-11303","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\n<title>Search academic texts - National Repository of Academic Texts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nrat.ukrintei.ua\/searchdb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nrat.ukrintei.ua\/searchdb\/\" \/>\n<meta property=\"og:site_name\" content=\"National Repository of Academic Texts\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/groups\/578991159108587\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-26T14:53:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2019\/12\/cropped-logo.png?fit=361%2C394&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"361\" \/>\n\t<meta property=\"og:image:height\" content=\"394\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@NRAT_UA\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/\",\"url\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/\",\"name\":\"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts\",\"isPartOf\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#website\"},\"datePublished\":\"2021-03-26T17:54:53+00:00\",\"dateModified\":\"2025-05-26T14:53:21+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/nrat.ukrintei.ua\/searchdb\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/nrat.ukrintei.ua\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#website\",\"url\":\"https:\/\/nrat.ukrintei.ua\/\",\"name\":\"National Repository of Academic Texts\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#organization\"},\"alternateName\":\"NRAT\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/nrat.ukrintei.ua\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#organization\",\"name\":\"National Repository of Academic Texts\",\"alternateName\":\"NRAT\",\"url\":\"https:\/\/nrat.ukrintei.ua\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1\",\"width\":275,\"height\":300,\"caption\":\"National Repository of Academic Texts\"},\"image\":{\"@id\":\"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/groups\/578991159108587\/\",\"https:\/\/x.com\/NRAT_UA\",\"https:\/\/t.me\/NationalRepository\",\"https:\/\/mastodon.social\/@es2023\",\"https:\/\/www.threads.net\/@202307es\"],\"publishingPrinciples\":\"https:\/\/nrat.ukrintei.ua\/polityka-nrat\/\",\"ownershipFundingInfo\":\"https:\/\/nrat.ukrintei.ua\/pro-nrat\/polozhennya\/\",\"actionableFeedbackPolicy\":\"https:\/\/nrat.ukrintei.ua\/feedback\/\",\"correctionsPolicy\":\"https:\/\/nrat.ukrintei.ua\/feedback\/\"}]}<\/script>\n","yoast_head_json":{"title":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nrat.ukrintei.ua\/searchdb\/","og_locale":"en_US","og_type":"article","og_title":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:]","og_url":"https:\/\/nrat.ukrintei.ua\/searchdb\/","og_site_name":"National Repository of Academic Texts","article_publisher":"https:\/\/www.facebook.com\/groups\/578991159108587\/","article_modified_time":"2025-05-26T14:53:21+00:00","og_image":[{"width":361,"height":394,"url":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2019\/12\/cropped-logo.png?fit=361%2C394&ssl=1","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_site":"@NRAT_UA","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/","url":"https:\/\/nrat.ukrintei.ua\/searchdb\/","name":"[:ua]\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432[:en]Search academic texts[:] - National Repository of Academic Texts","isPartOf":{"@id":"https:\/\/nrat.ukrintei.ua\/#website"},"datePublished":"2021-03-26T17:54:53+00:00","dateModified":"2025-05-26T14:53:21+00:00","breadcrumb":{"@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nrat.ukrintei.ua\/searchdb\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/nrat.ukrintei.ua\/searchdb\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/nrat.ukrintei.ua\/"},{"@type":"ListItem","position":2,"name":"\u041f\u043e\u0448\u0443\u043a \u0430\u043a\u0430\u0434\u0435\u043c\u0456\u0447\u043d\u0438\u0445 \u0442\u0435\u043a\u0441\u0442\u0456\u0432"}]},{"@type":"WebSite","@id":"https:\/\/nrat.ukrintei.ua\/#website","url":"https:\/\/nrat.ukrintei.ua\/","name":"National Repository of Academic Texts","description":"","publisher":{"@id":"https:\/\/nrat.ukrintei.ua\/#organization"},"alternateName":"NRAT","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nrat.ukrintei.ua\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/nrat.ukrintei.ua\/#organization","name":"National Repository of Academic Texts","alternateName":"NRAT","url":"https:\/\/nrat.ukrintei.ua\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1","contentUrl":"https:\/\/i0.wp.com\/nrat.ukrintei.ua\/wp-content\/uploads\/2026\/02\/CROPPED-LOGO-275X300.png?fit=275%2C300&ssl=1","width":275,"height":300,"caption":"National Repository of Academic Texts"},"image":{"@id":"https:\/\/nrat.ukrintei.ua\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/groups\/578991159108587\/","https:\/\/x.com\/NRAT_UA","https:\/\/t.me\/NationalRepository","https:\/\/mastodon.social\/@es2023","https:\/\/www.threads.net\/@202307es"],"publishingPrinciples":"https:\/\/nrat.ukrintei.ua\/polityka-nrat\/","ownershipFundingInfo":"https:\/\/nrat.ukrintei.ua\/pro-nrat\/polozhennya\/","actionableFeedbackPolicy":"https:\/\/nrat.ukrintei.ua\/feedback\/","correctionsPolicy":"https:\/\/nrat.ukrintei.ua\/feedback\/"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages\/11303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/comments?post=11303"}],"version-history":[{"count":0,"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/pages\/11303\/revisions"}],"wp:attachment":[{"href":"https:\/\/nrat.ukrintei.ua\/en\/wp-json\/wp\/v2\/media?parent=11303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}