BEREZANSKY, Yu. M.; KOROLYUK, V. S.; MITROPOLSKIY, Yu. A.; SAMOILENKO, A. M.; SKRYPNIK, I. V. Mykola Ivanovych Shkil’ (On His 70th Birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 12, p. 1589–1591, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4197. Acesso em: 6 dec. 2025.