1. S.C. Universal Alloy Corporation Europe S.R.L. Dumbravița 244A, 437145 Maramures, Romania
2. Industrial Engineering and Management Department, Faculty of Engineering, “Lucian Blaga” University of Sibiu, 10 Victoriei Street, 550024 Sibiu, Romania
3. The Academy of Romanian Scientists, 3 Ilfov Street, 030167 Bucharest, Romania
4. Faculty of Engineering, Department of Engineering and Technology Management, Northern University Centre of Baia Mare, Technical University of Cluj-Napoca, 62A Victor Babes Street, 430083 Baia Mare, Romania