@misc{Hüppe_Siegfried_(1845_-_)_De,
 author={Hüppe, Siegfried (1845 - )},
 howpublished={online},
 publisher={F. W. Jungferi},
 language={pol},
 language={lat},
 type={książka},
 title={De Poloniae post Henricum interregno 1575-1576},
 keywords={książki 19 w.},
}