1.
Бобрицька Г. Aleksander Mikhailovich Lyapunovs (1857–1918) Kharkov Period Of Scientific And Educational Activities. EducDim [Internet]. 2013 Nov. 21 [cited 2024 Nov. 22];39:290-5. Available from: https://journal.kdpu.edu.ua/ped/article/view/3073