@misc{Charlier_Carl_Ludwig_Die_1902,
 author={Charlier, Carl Ludwig},
 address={Leipzig},
 howpublished={online},
 year={1902},
 publisher={Verlag von Veit und Comp.},
 language={ger},
 type={text},
 title={Die Mechanik des Himmels. Bd. 1},
 keywords={celestial mechanics, perturbation theory},
}