Author(s):
1. Ivana Ivanić, 1University of Zagreb, Faculty of Metallurgy Sisak, Croatia
2. Stjepan Kožuh, 1University of Zagreb, Faculty of Metallurgy Sisak, Croatia
3. Andrej Vračan, Croatia
4. Borut Kosec, University of Ljubljana, Faculty of Natural Science and Engineering, Slovenia
5. Mirko Gojić, Croatia