@article{ASENS_1889_3_6__379_0,
     author = {Darboux, Gaston},
     title = {Sur la surface des ondes},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 6},
     year = {1889},
     pages = {379-388},
     doi = {10.24033/asens.330},
     language = {fr},
     url = {http://www.numdam.org/item/ASENS_1889_3_6__379_0}
}

Darboux, Gaston. Sur la surface des ondes. Annales scientifiques de l'École Normale Supérieure, Serie 3, Volume 6 (1889) , pp. 379-388. doi : 10.24033/asens.330. http://www.numdam.org/item/ASENS_1889_3_6__379_0/