@ARTICLE{Polko_Adam_Strategies_2015,
 author={Polko, Adam},
 number={vol. 43-44},
 journal={Studia Regionalia},
 howpublished={online},
 year={2015},
 publisher={Polish Academy of Sciences – Committee for Spatial Economy and Regional Planning and European Regional Science Association (ERSA) Polish Section},
 title={Strategies of Collective Action in Urban Public Spaces},
 URL={http://journals.pan.pl/Content/98263/mainfile.pdf},
}