IL’KIV, V.S.; STRAP, N.I. Non-local boundary value problem for a system of partial differential equations with operator coefficients in a complex domain. Carpathian Mathematical Publications, [S. l.], v. 6, n. 2, p. 242–255, 2014. DOI: 10.15330/cmp.6.2.242-255. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/1356. Acesso em: 4 may. 2024.