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Information × Registration Number 2117U002770, Article popup.category Thesis Title popup.author popup.publication 01-01-2017 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/65732 popup.publisher Sumy State University Description Presently energy-savings are one of the priority tasks. They are related to the deficit of basic energy resources, increasing cost of their extraction, and also to global ecological problems. popup.nrat_date 2025-05-12 Close