@misc{Weihner_Bartel_Der,
 author={Weihner Bartel and Paul Habel},
 address={Breslau},
 howpublished={online},
 publisher={Graß, Barth},
 language={ger},
 title={Der Stadtplan des Bartel Weihner},
 keywords={mapy, 19 w.},
}