@misc{Lubbert_Eduard_[Korespondencja,
 author={Lubbert, Eduard},
 address={Varese},
 howpublished={online},
 language={ger},
 type={text},
 title={[Korespondencja Friedricha Haasego - Haase 664]},
 keywords={Enrich Europeana Plus, correspondence},
}