@misc{_Bydgoszcz,
 address={[S. l.]},
 howpublished={online},
 publisher={[S. n.]},
 language={pol},
 language={ger},
 type={pocztówka},
 title={Bydgoszcz Plac teatralny i most gdańska. Bromberg Theaterplatz und Danzigerbrücke},
}