@misc{Poincaré_Henri_(1854–1912)_Rapport_1952,
 author={Poincaré, Henri (1854–1912) and Sémirot, Pierre.},
 address={Paris},
 howpublished={online},
 year={1952},
 publisher={Gauthier-Villars},
 language={fre},
 title={Rapport sur la proposition d'unification des jours astronomique et civil ( Annuaire du Bureau des Longitudes, 1895, p. E. I-E. 10)},
 type={Text},
 URL={http://www.rcin.org.pl/Content/215470/PDF/WA35_240691_6642-8_Art44.pdf},
}