Authors
Luis Miguel Fonseca
Associate Laboratory for Energy, Transports and Aerospace (LAETA-INEGI), 4200-465 Porto, Portugal
School of Engineering of Porto (ISEP), Polytechnic of Porto, 4249-015 Porto, Portugal
Ilona Skačkauskienė
Department of Management, Faculty of Business Management, Vilnius Gediminas Technical University (VILNIUS TECH), Sauletekio av. 11, LT-10223 Vilnius, Lithuania
Cristian Bușu
Department of Management, Bucharest University of Economic Studies, 010371 Bucharest, Romania
Mihaela Minciu
Teacher Training Department, Bucharest University of Economic Studies, 010374 Bucharest, Romania