Pylypchuk, O. Ya., and T. V. Pichkur. “Evolutionary Views of S.A. Podolynskyi and I.Ya. Franco”. History of science and technology 7, no. 11 (February 28, 2018): 227-236. Accessed August 19, 2026. https://www.hst-journal.com/index.php/hst/article/view/145.