GORBACHUK, M. L.; LUKOVSKY, I. O.; MARCHENKO, V. O.; MITROPOLSKIY, Yu. A.; PASTUR, L. A.; SAMOILENKO, A. M.; SKRYPNIK, I. V.; KHRUSLOV, E. Ya. Dmytro Yakovych Petryna (on his 70 th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 3, p. 291–292, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3754. Acesso em: 6 dec. 2025.