Authors
magda.stachowiak-krzyzan@ue.poznan.pl
Poznan University of Economics and Business, Institute of Marketing, Department of Product Marketing al, Poznań, Poland
magda.stachowiak-krzyzan@ue.poznan.pl
© 2021 Magda Stachowiak-Krzyżan, published by ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.