JENALIYEV, M.T.; AMANGALIYEVA, M.M.; IMANBERDIYEV, K.B. On the ill-posed problem for the Poisson equation. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 90, n. 2, p. 72–79, 2018. DOI: 10.31489/2018m2/72-79. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/226. Acesso em: 13 oct. 2025.