@misc{Berghaus_Heinrich_Karl_Wilhelm_(1797-1884)_Brief,
 author={Berghaus, Heinrich Karl Wilhelm (1797-1884) and Humboldt, Alexander von (1769-1859)},
 howpublished={online},
 language={ger},
 language={fre},
 title={Brief von Heinrich Karl Wilhelm Berghaus an Johann Jakob Weber},
 type={rękopis},
 keywords={rękopisy},
}