Authors
Barbara Mróz-Gorgoń
Wrocław University of Economics, Department of Marketing, Wrocław, ul., Komandorska, Poland
Grzegorz Szymański
Lodz University of Technology, Department of Management and Engineering Production, ul., Piotrkowska, Poland
© 2018 Barbara Mróz-Gorgoń, Grzegorz Szymański, published by Poznań University of Economics and Business Press
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.