Wojarska, M., Marks-Bielska, R., Lizińska, W. and Babuchowska, K. 2017. Social service provision as determinant of institutional efficiency of local self-governments. Ekonomia i Prawo. Economics and Law. 16, 1 (Mar. 2017), 107–118. DOI:https://doi.org/10.12775/EiP.2017.008.