@article{ASENS_1903_3_20__531_0,
     author = {Picard, \'Emile},
     title = {Sur les p\'eriodes des int\'egrales doubles et leurs rapports avec la th\'eorie des int\'egrales doubles de seconde esp\`ece},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {531--584},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 20},
     year = {1903},
     doi = {10.24033/asens.533},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.533/}
}