@misc{Hoene-Wroński_Józef_Maria_(1776–1853)_Calculs,
 author={Hoene-Wroński Józef Maria (1776–1853)},
 copyright={PAN Biblioteka Kórnicka},
 howpublished={online},
 language={fre},
 title={Calculs pour la théorie des réfractions. No 20},
 keywords={fizyka 19w., matematyka 19w., mathématiques 19 siècle, mathematics 19th century, physique 19 siècle, physics 19th century, refrakcje, réfractions, refractions},
}