Authors
Susana Amante
School of Technology and Management, and CI&DEI, at the Polytechnic of Viseu, Portugal
Maria José Antunes
School of Technology and Management, and CISeD, Polytechnic of Viseu, Portugal
Magdalena Dygala
Kazimierz Pulaski University of Technology and Humanities, Radom, Poland
İlkay Gökçe
Ege University, Izmir, Turkey
