BERDYSHEV, A.; HASANOV, A.; RYSKAN, A. Solution of the Neumann Problem for One Four-Dimensional Elliptic Equation. Eurasian Mathematical Journal, [S. l.], v. 11, n. 2, 2024. Disponível em: https://emj.enu.kz/index.php/main/article/view/183. Acesso em: 5 oct. 2024.