@misc{_Uebersichtsplan,
 address={[Bydgoszcz]},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 title={Uebersichtsplan der Gemarkung Stadt Bromberg. Blatt 4},
 type={mapa},
 keywords={Bydgoszcz - plan miasta},
}