Authors
Krzysztof Piasecki
krzysztof.piasecki@ue.poznan.pl
Poznań University of Economics and Business, Department of Investment and Real Estate, Poznań, Poland
Aleksandra Wójcicka-Wójtowicz
aleksandra.wojcicka@ue.poznan.pl
Poznań University of Economics and Business, Department of Operations Research, Poznań, Poland