ASSANOVA, A.; SABALAKHOVA, A. On the unique solvability of nonlocal problems with integral conditions for a hybrid system of partial differential equations. Eurasian Mathematical Journal, [S. l.], v. 9, n. 3, p. 14–24, 2018. DOI: 10.32523/2077-9879-2018-9-3-14-24. Disponível em: https://emj.enu.kz/index.php/main/article/view/121. Acesso em: 24 oct. 2026.