Authors
Jolanta Bijańska
Silesian University of Technology, Faculty of Organization and Management ul. Roosevelta 26, 41-00, Zabrze, Poland
Krzysztof Wodarski
Silesian University of Technology, Faculty of Organization and Management ul. Roosevelta 26, 41-00, Zabrze, Poland
Janusz Wójcik
Fabryka Drutu Gliwice Sp. z o.o. ul. Dubois 45C, 44-100, Gliwice, Poland