oleksyp@uek.krakow.pl
matthias.reccius@ruhr-uni-bochum.de
czuprynm@uek.krakow.pl
© 2025 Paweł Oleksy, Matthias Reccius, Marcin Czupryna, published by Poznan University of Economics and BusinessThis work is licensed under the Creative Commons Attribution 4.0 License.