EDITORIALBOARD. Vladislav Kirillovich Dzyadyk (on his 80-th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 5, p. 581–582, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4645. Acesso em: 6 dec. 2025.