@misc{Ideler_Julius_Ludwig_(1809-1842)_Brief,
 author={Ideler, Julius Ludwig (1809-1842) and [Landresse, Ernest Augustin Xavier Clerc de (1800-1862)] and Wilmans, Otto},
 howpublished={online},
 language={ger},
 language={fre},
 title={Brief von Julius Ludwig Ideler, Ernest Augustin Xavier Clerc de Landresse und Otto Wilmans an Alexander von Humboldt},
 type={rękopis},
 keywords={rękopisy},
}