Ivanišević, Aljoša, Mladomir Milutinović, Branko Štrbac, and Plavka Skakun. 2013. “Stress State and Spring Back in V-Bending Operations”. Advanced Technologies and Materials 38 (2):157-68. https://jged.uns.ac.rs/index.php/atm/article/view/JTP.2013.38.2.5.