@ARTICLE{Marszał_Tadeusz_Some_2014,
 author={Marszał, Tadeusz},
 number={vol. 38},
 journal={Studia Regionalia},
 howpublished={online},
 year={2014},
 publisher={Polish Academy of Sciences – Committee for Spatial Economy and Regional Planning and European Regional Science Association (ERSA) Polish Section},
 title={Some Remarks on Co-operation of Cities and Cohesion of MultipolarMertopolitan Areas in Poland},
 URL={http://journals.pan.pl/Content/98185/mainfile.pdf},
}