@misc{Debes_Ernst_(1840–1923)_Schlesien_[ca,
 author={Debes, Ernst (1840–1923)},
 editor={H. Wagner & E. Debes, Geographische Anstalt},
 copyright={Public Domain},
 address={Leipzig},
 howpublished={online},
 year={[ca 1919-1938]},
 publisher={Verlag von H. Wagner & E. Debes},
 language={ger},
 title={Schlesien : E. Debes Reliefkarte},
 keywords={political-administrative maps, chorographic maps, physical maps, relief maps, Silesia},
}