PIWNIK, J. Modelowanie Procesów Wyciskania Materiałów Niejednorodnych. Engineering Transactions, [S. l.], v. 35, n. 2, p. 275–288, 1987. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/1762. Acesso em: 23 jul. 2025.