GRZYMKOWSKI, M.; MRÓZ, Z. Slip-Line Solutions of Some Axi-Symmetric Problems of Plastic Compression of Cylinders and Rings. Engineering Transactions, [S. l.], v. 24, n. 1, p. 171–183, 1976. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/2293. Acesso em: 9 oct. 2025.