@misc{Jażdżewska_Iwona_The_2013,
 author={Jażdżewska, Iwona},
 volume={86},
 number={3},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Geographia Polonica},
 howpublished={online},
 year={2013},
 publisher={IGiPZ PAN},
 language={eng},
 type={Text},
 title={The historical diversity of Poland's urban network: Cluster analysis versus historical regions},
 URL={http://rcin.org.pl/igipz/Content/38760/PDF/WA51_55663_r2013-t86-no3_G-Polonica-Jazdzewsk.pdf},
 keywords={urban network, cities and towns, clustering, historical geography, GIS, Poland},
}