@article{Polko_Adam_Strategies_2015,
 author={Polko, Adam},
 number={vol. 43-44},
 howpublished={online},
 journal={Studia Regionalia},
 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},
}