Borodai, Iryna. " The serial publications as sources of research on the history of agricultural experimental work in Ukraine." Universum Historiae et Archeologiae = The Universe of History and Archeology = Універсум історії та археології = Универсум истории и археологии ISSN 2664-9950 (Print) ISSN 2707-6385 (Online) [Online], 2.1 (2019): 194–204. Web. 8 Aug. 2020