KOSHLYAKOV, V. N.; MITROPOLSKIY, Yu. A.; SAMOILENKO, A. M.; URBANSKY, V. M. Oleksii Mykolajovych Boholyubov (on His 90th Birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 3, p. 294–295, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4251. Acesso em: 6 dec. 2025.