Lužanin, O., and M. Plančak. “Virtual Reality Technologies in Virtual Manufacturing – Notes on Current Trends and Applications”. Advanced Technologies and Materials, vol. 33, no. 1-2, Dec. 2008, pp. 103-11, https://atm-journal.uns.ac.rs/index.php/atm/article/view/jtp.2008.33.1-2.9.