Authors
karolina.siemaszkiewicz@ue.poznan.pl
Poznan University of Economics and Business, Department of Applied Mathematics, Poznan, Poland
karolina.siemaszkiewicz@ue.poznan.pl
© 2022 Karolina Siemaszkiewicz, published by Sciendo
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 License.