BEREZANSKY, Yu. M. et al. Igor Volodymyrovych Skrypnik (On His 60th Birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 11, p. 1443–1445, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4551. Acesso em: 6 dec. 2025.