MUKHOPADHYAY, Sourangshu. Natural convection flow on a sphere through porous medium in presence of heat source/sink near a stagnation point. Mathematical Modelling and Analysis, [S. l.], v. 13, n. 4, p. 513–520, 2008. DOI: 10.3846/1392-6292.2008.13.513-520. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/7038. Acesso em: 2 jun. 2025.