@misc{Laplace_P._S._Traité_1799,
 author={Laplace, P. S.},
 address={Paris},
 howpublished={online},
 year={1799},
 publisher={J. B. M. Duprat},
 language={fre},
 type={text},
 title={Traité de Mécanique Céleste. T. II},
 keywords={Laplace, Pierre Simon, celestial mechanics},
}