KOSHANOV, B.; KOSHANOVA, G.; AZIMKHAN, G.; SEGIZBAYEVA, R. SOLVABILITY OF BOUNDARY VALUE PROBLEMS WITH NON-LOCAL CONDITIONS FOR MULTIDIMENSIONAL HYPERBOLIC EQUATIONS. Academic Scientific Journal of Computer Science, [S. l.], n. 2, p. 103–111, 2020. Disponível em: http://89.250.84.46/physics-mathematics/article/view/412. Acesso em: 13 дек. 2025.