NIEMUNIS, A. The Effect of the Poisson Ratio on the Yield Function in Plane Strain Condition. Engineering Transactions, [S. l.], v. 36, n. 4, p. 629–643, 1988. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/1738. Acesso em: 23 sep. 2025.