SARSENBI, A.A. A solvability conditions of mixed problems for equations of parabolic type with involution. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 92, n. 4, p. 87–93, 2018. DOI: 10.31489/2018m4/87-93. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/247. Acesso em: 3 jul. 2025.