Petruchenko, O. A. “S.Y. Witte about Labour of J. M. Hordyeyenko «Bases of Railway Economy» It Is Saint Petersburg, 1885»”. History of science and technology 6, no. 9 (December 21, 2016): 41-48. Accessed December 1, 2022. https://www.hst-journal.com/index.php/hst/article/view/153.