@ARTICLE{Woźniak_Dariusz_Specializations_2015,
 author={Woźniak, Dariusz},
 number={vol. 41-42},
 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={Specializations and competitive advantages of Polish regions. Analysis in years 2005–2012},
 URL={http://journals.pan.pl/Content/98246/mainfile.pdf},
}