@article{JMPA_1880_3_6__187_0,
     author = {David},
     title = {Sur la transformation des fonctions $\Theta$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {187--214},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 6},
     year = {1880},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1880_3_6__187_0/}
}