Variable viscosity and thermal conductivity effects on heat transfer by natural convection from a cone and a wedge in porous media. Archives of Mechanics, [S. l.], v. 55, n. 4, p. 345–356, 2003. Disponível em: https://am3.ippt.pan.pl/index.php/am/article/view/v55p345. Acesso em: 14 may. 2025.