Kovalchuk Ivan Vasilevich. The political-military and social-economic components of the OUN and UPA in Zhytomyr region and western districts of Kyiv region (group (VO) "Tiutiunnyk") in 1941-1943 : к.і.н. : spec.. 07.00.01 - Історія України : presented. 2012-06-15; popup.evolution: .; National pedagogikal university named by M.P.Dragomanov. – , 0412U003725.

Updated: 2026-11-10