Kakaš, D., T. Novakov, M. Vilotić, and L. Kovačević. “Nanomodification of Forming Tool Surface by Ion Implantation”. Advanced Technologies and Materials, vol. 31, no. 1-2, Dec. 2006, pp. 1-17, https://jged.uns.ac.rs/index.php/atm/article/view/jtp.2006.31.1-2.1.