Vaniuha, Liudmyla, Yaroslava Toporivska, Oksana Hysa, Iryna Zharkova, and Mykola Bazhanov. “I. H. Verkhratskyi (1846–1919): At the Origins of Ukrainian Natural Science”. History of science and technology 11, no. 1 (June 26, 2021): 84-102. Accessed July 26, 2026. https://www.hst-journal.com/index.php/hst/article/view/461.