@misc{, copyright={Public Domain}, address={Bielefeld}, address={Leipzig}, howpublished={online}, URL={http://www.rcin.org.pl/igipz/Content/90551/PDF/WA51_92943_PTGD238-r1938_Karte-der-Sudetenlander.pdf}, keywords={Czechoslovakia, Sudeten (Czechoslovakia), chorographic maps}, }