GOL’DMAN, N. Study of some mathematical models for nonstationary filtration processes. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie), [S. l.], v. 21, n. 63, p. 1–12, 2020. DOI: 10.26089/NumMet.v21r101. Disponível em: https://en.num-meth.ru/index.php/journal/article/view/1041. Acesso em: 14 dec. 2025.