@misc{Buschmann_Johann_Carl_Eduard_(1805-1880)_Brief,
 author={Buschmann, Johann Carl Eduard (1805-1880)},
 howpublished={online},
 language={ger},
 type={rękopis},
 title={Brief von Johann Carl Eduard Buschmann an Alexander von Humboldt},
 keywords={rękopisy},
}