@misc{Bieberfeldt_Carl_Vor,
 author={Bieberfeldt, Carl},
 address={Breslau (Wrocław)},
 howpublished={online},
 publisher={Verlag von Georg C.},
 language={ger},
 type={tekst},
 title={Vor hundert Jahren},
 keywords={19 w., Wrocław},
}