Jurek-Wasilewska, Kinga. “The Efficiency of Investing in Open-End Mutual Funds in Poland in Years 2001–2010”. Journal of Finance and Financial Law 1, no. 1 (March 30, 2014): 20–33. Accessed January 12, 2026. https://www.czasopisma.uni.lodz.pl/fipf/article/view/9764.