Korobchenko , A. A. “The Contents and the Main Activities of Society of Testers of the Nature at the Kharkov University (1869-1930) in the Context of Development of Natural Sciences in Ukraine”. Zaporizhzhia Historical Review 1, no. 43 (February 22, 2021): 345-351. Accessed March 29, 2024. https://istznu.org/index.php/journal/article/view/1116.