Vergunov, V. A. “Professor Pavlo F. Tushkan (Tushkanov) (1867–1942): Life Gives Agricultural Science and Education of Ukraine”. History of science and technology 7, no. 11 (February 28, 2018): 125-146. Accessed August 19, 2026. https://www.hst-journal.com/index.php/hst/article/view/134.