SHIVAKUMARA, S.; NANJUNDAPPA, C.E. Onset of convection in a sparsely packed porous layer with throughflow. Archives of Mechanics, Warsaw, Poland, v. 53, n. 3, p. 219–241, 2001. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v53p219. Acesso em: 12 dec. 2025.