@misc{Mayendorff_Peter_von_[List,
 author={Mayendorff, Peter von},
 address={Berlin},
 howpublished={online},
 language={ger},
 type={text},
 title={[List do J. D. F. Neigebaura - Neigebaur 143]},
 keywords={Enrich Europeana Plus, correspondence},
}