@misc{Breitherr_Situation,
 author={Breitherr},
 address={[Bydgoszcz]},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 type={mapa},
 title={Situation Plan v. e. Stück Wald... Vorverk Alt Rohrbruch...},
 keywords={Bydgoszcz (okręg) -- mapy -- 19 w},
}