Vilotić, Marko, Vesna Mandić, and Miroslav Plančak. “Ubet Analysis, Finite Element Simulation and Experimental Investigation of Backward Extrusion”. Advanced Technologies and Materials 29, no. 1-2 (December 20, 2004): 85–97. Accessed September 20, 2024. https://atm-journal.uns.ac.rs/index.php/atm/article/view/jtp.2004.29.1-2.9.