Kłos M.J.,
Department of Transport Systems, Traffic Engineering, and Logistics, Faculty of Transport and Aviation Engineering, Silesian University of Technology, Katowice, Poland
Sierpiński G.,
Department of Transport Systems, Traffic Engineering, and Logistics, Faculty of Transport and Aviation Engineering, Silesian University of Technology, Katowice, Poland
Rosa G.,
Institute of Spatial Management and Socio-Economic Geography, University of Szczecin, Szczecin, Poland
Mindur L.,
University College of Professional Education in Wroclaw, Wroclaw, Poland
Mindur M.,
Faculty of Economics, Innovation and Social Capital, Lublin University of Technology, Lublin, Poland