@misc{Langevin_Paul_(1872–1946)_Sur_1950,
 author={Langevin, Paul (1872–1946)},
 copyright={Public Domain},
 address={Paris},
 howpublished={online},
 year={1950},
 publisher={CNRS},
 language={fre},
 type={Text},
 title={Sur la mobilitè des ions dans les gaz, C. R. Acad. Sci., 1902, 134, 466},
 URL={http://rcin.org.pl/Content/193972/PDF/WA35_226681_8818_Art3.pdf},
}