@misc{Roth_Karl_Ludwig_[Korespondencja,
 author={Roth, Karl Ludwig},
 address={Stuttgart},
 howpublished={online},
 language={ger},
 title={[Korespondencja Friedricha Haasego - Haase 821]},
 type={text},
 keywords={Enrich Europeana Plus, correspondence},
}