@misc{Poincaré_Henri_(1854–1912)_Les_1952,
 author={Poincaré, Henri (1854–1912) and Sémirot, Pierre.},
 address={Paris},
 howpublished={online},
 year={1952},
 publisher={Gauthier-Villars},
 language={fre},
 type={Text},
 title={Les solutions périodiques et les planètes du type d'Hécube ( Bull. astron., t. 19, 1902, p. 177-198)},
 URL={http://www.rcin.org.pl/Content/214282/PDF/WA35_240673_6642-8_Art28.pdf},
}