EDITORIAL BOARD, . Успехи советской математики на Украине. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 4, n. 4, p. 1–4, 1952. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6809. Acesso em: 5 dec. 2025.