@misc{Humboldt_Alexander_von_(1769-1859)_Cahier,
 author={Humboldt, Alexander von (1769-1859)},
 howpublished={online},
 language={ger},
 language={fre},
 type={rękopis},
 title={Cahier IVc (Manuskripttitel)},
 keywords={rękopisy},
}