PAMIN, J.; DE BORST, R. Stiffness degradation in gradient-dependent coupled damage-plasticity. Archives of Mechanics, Warsaw, Poland, v. 51, n. 3-4, p. 419–446, 1999. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v51p419. Acesso em: 19 nov. 2025.