Zakonnik, Łukasz 2024. Price formation of autographs of famous persons at stationary and online auctions in Poland before, during and after the Covid19 pandemic - influence of selected factors. Scientific Journal of Bielsko-Biala School of Finance and Law. 28, 1 (Mar. 2024), 43–54. DOI:https://doi.org/10.19192/wsfip.sj1.2024.6.