SAMOILENKO, A. M. Life and work of N. N. Bogolyubov (on his 100th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 8, p. 1130–1141, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3085. Acesso em: 5 dec. 2025.