@misc{Poincaré_Henri_(1854–1912)_Sur_1952,
 author={Poincaré, Henri (1854–1912) and Sémirot, Pierre.},
 address={Paris},
 howpublished={online},
 year={1952},
 publisher={Gauthier-Villars},
 language={fre},
 type={Text},
 title={Sur le déterminant de Hill ( Bull. astron., t. 17, 1900, p. 134-143)},
 URL={http://www.rcin.org.pl/Content/214213/PDF/WA35_240664_6642-8_Art26.pdf},
}