GERASIMENKO, V. I.; MALYSHEV, P. V. Creative Contribution of D. Ya. Petrina to the Development of Contemporary Mathematical Physics. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 3, p. 293–308, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3755. Acesso em: 6 dec. 2025.