@article{ASENS_1884_3_1__135_0,
     author = {Appell, P.},
     title = {Sur les fonctions doublement p\'eriodiques de troisi\`eme esp\`ece},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {135--164},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 1},
     year = {1884},
     doi = {10.24033/asens.236},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.236/}
}