@misc{Oltmanns_Jabbo_(1783-1833)_Brief,
 author={Oltmanns, Jabbo (1783-1833) and Humboldt, Alexander von (1769-1859)},
 howpublished={online},
 language={ger},
 type={rękopis},
 title={Brief von Jabbo Oltmanns an Alexander von Humboldt},
 keywords={rękopisy},
}