ASSANOVA, A.; ABILDAYEVA, A.; SABALAKHOVA, A. AN INITIAL-BOUNDARY VALUE PROBLEM FOR A HIGHER-ORDER PARTIAL DIFFERENTIAL EQUATION. Известия НАН РК. Серия физико-математическая, [S. l.], n. 2, p. 133–141, 2020. Disponível em: http://89.250.84.46/physics-mathematics/article/view/418. Acesso em: 23 дек. 2024.