@misc{_Plan,
 address={Bydgoszcz},
 howpublished={online},
 publisher={A. Dittmann},
 language={ger},
 type={mapa},
 title={Plan der Stadt Bromberg mit Vororten},
 keywords={Bydgoszcz - plan miasta, Bydgoszcz - spis nazw ulic},
}