KOILYSHOV, U.K.; BEISENBAEVA, K.A.; ZHAPPAROVA, S.D. A priori estimate of the solution of the Cauchy problem in the Sobolev classes for discontinuous coefficients of degenerate heat equations. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 107, n. 3, p. 59–69, 2022. DOI: 10.31489/2022m3/59-69. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/513. Acesso em: 10 jul. 2025.