@misc{Chopin_Fryderyk_(1810-1849)_La,
 author={Chopin, Fryderyk (1810-1849)},
 howpublished={online},
 publisher={Francis Salabert},
 language={fre},
 language={eng},
 title={La nuit ensorcelée = (The bewitching night) : ballet en deux tableaux de Leon Bakst},
}