@misc{Poincaré_Henri_(1854–1912)_Note_1952,
 author={Poincaré, Henri (1854–1912) and Sémirot, Pierre.},
 address={Paris},
 howpublished={online},
 year={1952},
 publisher={Gauthier-Villars},
 language={fre},
 type={Text},
 title={Note sur la stabilité de l'anneau de Saturne ( Bull. astron., t. 2, 1885, p. 507-508)},
 URL={http://www.rcin.org.pl/Content/214303/PDF/WA35_240675_6642-8_Art30.pdf},
}