@misc{_Przegląd_1981,
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Przegląd Geograficzny},
 howpublished={online},
 year={1981},
 publisher={IGiPZ PAN},
 language={pol},
 language={eng},
 title={Przegląd Geograficzny T. 53 z. 3 (1981)},
 type={Text},
 URL={http://www.rcin.org.pl/igipz/Content/13258/PDF/WA51_16262_r1981-t53-z3_Przeg-Geogr.pdf},
 keywords={railway network diffusion, centrographic measures, gravitational methods, graph methods, hierarchy of spatial units, intervoivodship migration, tills, steppe vegetaton, radiation balance, springs, Lublin Upland, shape of settlement units, philosophical patterns of geography, sylvan ecosystems, acid rain, landscape maps, economic geography, Siberia, Mongolia, Poland},
}