EDITORIAL BOARD. Yuri Alekseevich Mitropolsky (On the 75th anniversary of his birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 1, p. 3–4, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2313. Acesso em: 6 dec. 2025.