ON MATHEMATICAL MODELLING OF THE 2-D FILTRATION PROBLEM IN POROUS AXIAL SYMMETRICAL CYLINDER. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 3, p. 129–135, 2017. DOI: 10.17770/etr2017vol3.2566. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4126.. Acesso em: 11 mar. 2026.