DANYLYUK, A. O. Boundary-value problem for a parabolic system of integro-differential equations with integral conditions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 12, p. 1610 – 1618, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3275. Acesso em: 11 apr. 2025.