KULZHUMIYEVA, A. A.; SARTABANOV, Z. A. On multiperiodic integrals of a linear system with the differentiation operator in the direction of the main diagonal in the space of independent variables. Eurasian Mathematical Journal, [S. l.], v. 8, n. 1, p. 67–75, 2017. Disponível em: https://emj.enu.kz/index.php/main/article/view/656. Acesso em: 3 jan. 2026.