@misc{_Königreich_[1813],
 copyright={Public Domain},
 address={[Wien]},
 howpublished={online},
 year={[1813]},
 publisher={im Verlage des k. k. Schulbücher-Verschleisses bey St. Anna},
 language={ger},
 title={Königreich Preussen},
 keywords={chorographic maps, Kingdom of Prussia, Poland, 19th century},
}