TLEUBERGENOV, M.; IBRAEVA, G. On inverse problem of closure of differential systems with degenerate diffusion. Eurasian Mathematical Journal, [S. l.], v. 10, n. 2, p. 93–102, 2019. DOI: 10.32523/2077-9879-2019-10-2-93-102. Disponível em: https://emj.enu.kz/index.php/main/article/view/150. Acesso em: 15 nov. 2026.