GORBACHUK, M. L.; ZADEREI, P. V.; LUKOVSKY, I. O.; MITROPOLSKIY, Yu. A.; ROMANYUK, A. S.; RUKASOV, V. I.; SAMOILENKO, A. M.; SERDYUK, A. S.; SHEVCHUK, I. A. Alexander Ivanovich Stepanets. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 59, n. 12, p. 1722–1724, 2007. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3427. Acesso em: 6 dec. 2025.