Guzik, Krzysztof, and Paweł Prysak. “Profitability of Investment Portfolios Based on Partial Order Relations”. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 1(937) (November 18, 2015): 51–67. Accessed November 22, 2024. https://krem.uek.krakow.pl/index.php/krem/article/view/464.