BANACH, Z.; PIEKARSKI, S. Thermodynamic potentials and extremum principles for a Boltzmann gas. Archives of Mechanics, Warsaw, Poland, v. 48, n. 5, p. 791–812, 1996. Disponível em: http://am.ippt.gov.pl/index.php/am/article/view/v48p791. Acesso em: 17 jan. 2026.