VILOTIĆ, D.; PLANČAK, M.; POPOVIĆ, M. Theoretical solution of contact stresses in upsetting of cylinder by spherical concave dies. Advanced Technologies and Materials, [S. l.], v. 25, n. 1-2, p. 71–80, 2000. Disponível em: https://jged.uns.ac.rs/index.php/atm/article/view/jtp.2000.26.1.8. Acesso em: 31 oct. 2024.