HATFIELD, G.; OLVER, P.J. Canonical forms and conservation laws in linear elastostatics. Archives of Mechanics, Warsaw, Poland, v. 50, n. 3, p. 389–404, 1998. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v50p389. Acesso em: 19 nov. 2025.