Gráf, G., and J. Čermák. “Close-Die Flashless Forging in Automotive Industry”. Advanced Technologies and Materials 26, no. 2 (December 28, 2001): 1–9. Accessed October 10, 2024. http://sp.ftn.uns.ac.rs/index.php/atm/article/view/jtp.2001.27.2.1.