@misc{Knauth_Berthold_[Korespondencja,
 author={Knauth, Berthold},
 address={Erfurt},
 howpublished={online},
 language={ger},
 type={text},
 title={[Korespondencja Friedricha Haasego - Haase 567]},
 keywords={Enrich Europeana Plus, correspondence},
}