@misc{_Przegląd_1977, copyright={Rights Reserved - Free Access}, address={Warszawa}, journal={Przegląd Geograficzny}, howpublished={online}, year={1977}, publisher={IGiPZ PAN}, language={pol}, language={eng}, title={Przegląd Geograficzny T. 49 z. 3 (1977)}, type={Text}, URL={http://rcin.org.pl/igipz/Content/14199/PDF/WA51_16280_r1977-t49-z3_Przeg-Geogr.pdf}, keywords={Torsten Haegerstrand, natural increase, migration, population density, Greek emigrants, grain size, soil degradation, space economy, expeditions, Spitsbergen, Warsaw agglomeration, Poland}, }