EDITORIALBOARD. Dmitry Petrina. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 9, p. 1296, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3532. Acesso em: 7 dec. 2025.