@misc{_[Ein,
 address={[Bydgoszcz]},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 type={mapa},
 title={[Ein Plan der Bebauung des Theaterplatzes in Bromberg]},
 keywords={Bydgoszcz -- mapy -- 19 w, Bydgoszcz -- plan miasta},
}