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

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

Rados¿aw Wolniak is full professor at the Department of Economics and Informatics at the Silesian University of Technology, Poland.

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