Prostak, R. 2017. Towards a Political Mechanism for Enforcement of Union’s Values. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie. 6(966) (Dec. 2017), 45–57. DOI:https://doi.org/10.15678/ZNUEK.2017.0966.0603.