@misc{Velhagen_&_Klasing_Velhagen_1938,
 author={Velhagen & Klasing},
 copyright={Public Domain},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 year={1938},
 publisher={Velhagen & Klasing},
 language={ger},
 type={Obraz},
 title={Velhagen & Klasing Karte der Sudetenländer},
 URL={http://rcin.org.pl/igipz/Content/90551/PDF/WA51_92943_PTGD238-r1938_Karte-der-Sudetenlander.pdf},
 keywords={Czechoslovakia, Sudeten (Czechoslovakia), chorographic maps},
}