Bugaj, J. and Sulyma, A. 2022. Problems in Defining Leadership – A Systematic Literature Review. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie. 2(996) (Nov. 2022), 99–117. DOI:https://doi.org/10.15678/ZNUEK.2022.0996.0206.