Samoilenko AM. Life and work of N. N. Bogolyubov (on his 100th birthday). Ukr. Mat. Zhurn. [Internet]. 2009 Aug. 25 [cited 2025 Dec. 5];61(8):1130-41. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3085