@misc{_Karte_[1900],
 copyright={Copyright by Uniwersytet Wrocławski},
 copyright={University of Wroclaw},
 howpublished={online},
 year={[1900]},
 publisher={s.n.},
 language={ger},
 title={Karte des Deutschen Reiches 1:100 000 - 465. Ilmenau},
}