@misc{_Evolution_1990,
 editor={Grzeszczak, Jerzy (1932– ). Red.},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Conference Papers - Institute of Geography and Spatial Organization},
 howpublished={online},
 year={1990},
 publisher={IGiPZ PAN},
 language={eng},
 language={ger},
 title={Evolution of population and economic activities in urban regions : papers from the 6th Polish-GDR geographical seminar, Szymbark, September 12-16 1988},
 type={Text},
 URL={http://www.rcin.org.pl/Content/33964/PDF/WA51_44571_r1990-10_Conference-Papers.pdf},
 keywords={urban regions, population, economy, Poland, Germany},
}