EDITORIALBOARD. Ivan Oleksandrovych Lukovs’kyi (on his 80th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 9, p. 12941297, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2066. Acesso em: 6 dec. 2025.