@misc{_Breslau,
 address={Breslau},
 address={München},
 howpublished={online},
 publisher={Städtisches Vermessungsamt},
 publisher={Holzapfel, Hans},
 language={ger},
 title={Breslau und Schlesiens Berge},
 keywords={20 w., kartografia, panoramy, plany miast, Wrocław, Sudety},
}