EditorialBoard, “Mykhailo Pylypovych Kravchuk (27.09.1892 – 09.03.1942), famous ukrainian mathematician (on the 125th anniversary of his birth)”, Ukr. Mat. Zhurn., vol. 69, no. 9, pp. 1265–1269, Sep. 2017, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1777