Justyna ¿ywiöek is an Assistant Professor in the Department of Production and Safety Engineering, Faculty of Management, Cz¿stochowa University of Technology, Poland.

Joanna Ejdys is a Professor of Social Sciences and the Head of the International Department of Logistics and Service Engineering at the Bialystok University of Technology, Poland.

Rados¿aw Wolniak is a Full Professor in the Department of Economics and Informatics at the Silesian University of Technology, Poland.

Senad Becirovic is an Associate Professor at the University College of Teacher Education Lower Austria.