@misc{Sommelius_Gustav_Lorenz_M._[Korespondencja,
 author={Sommelius, Gustav Lorenz M.},
 address={Lund},
 howpublished={online},
 language={ger},
 type={text},
 title={[Korespondencja Friedricha Haasego - Haase 888]},
 keywords={Enrich Europeana Plus, correspondence},
}