Institute of Industrial Engineering, Management and Quality, Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Paulínska 16, 917 24 Trnava
Peter Bajor
Széchenyi István Egyetem, Department of transportation and forwarding, Egyetemtér 1, 9026 Győr
Sabrina Trafela
Faculty of logistics, University of Maribor, Mariborska 7, 3000 Celje, Slovenia