David Kergel, HAWK Hildesheim, Germany Birte Heidkamp, Rhine-Waal University of Applied Sciences, Kamp-Lintfort, Germany Patrik Kjærsdam Telléus, Aalborg University, Denmark Tadeusz Rachwal, SWPS University of Social Sciences and Humanities, Warsaw, Poland Samuel Nowakowski, University of Lorraine, Nancy, France