GLUSHCHENKO, A. A.; LYASHKO, I. I.; MITROPOLSKIY, Yu. A.; PARASYUK, I. O.; SAMOILENKO, A. M.; SAMOILENKO, V. G. V. G. Georgii Mykolaiovych Polozhyi (on his 90th birthday). Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 4, p. 560–561, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3776. Acesso em: 5 dec. 2025.