Turkoz, Mevlut, Osman Yigit, Murat Dilmec, Huseyin Selcuk Halkaci, and Behcet Daghan. 2011. “Numerical and Experimental Comparison of Hemispherical Punch Stretching Test”. Advanced Technologies and Materials 36 (2):87-95. https://jged.uns.ac.rs/index.php/atm/article/view/jtp.2011.36.2.4.