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Adrian TOMA
Ph.D. Stud, University of Petroşani, Department of Management and Industrial Engineering, 20 University Street, 332006, Petroşani, Romania, E-mail: aditzaana@gmail.com, Petroşani, Romania
Roland Iosif MORARU
Professor, Ph.D., University of Petroşani, Department of Management and Industrial Engineering, 20 University Street, 332006, Petroşani, Romania, E-mail: roland_moraru@yahoo.com, Petroşani, Romania.
Mihai POPESCU-STELEA
Lecturer, Ph.D., University of Petroşani, Department of Management and Industrial Engineering, 20 University Street, 332006, Petroşani, Romania, E-mail: popescusteleamihai@yahoo.ro.
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