EDITORIAL BOARD. Alphabetic index of the 40th volume of the Ukrainian mathematical journal. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 40, n. 6, p. 808–811, 1988. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9298. Acesso em: 17 feb. 2026.