@article{MAN_1904__59_158148,
     author = {Niels Nielsen},
     title = {Sur une integrale d\'efinie},
     journal = {Mathematische Annalen},
     pages = {89--102},
     year = {1904},
     volume = {59},
     zbl = {35.0483.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__59_158148/}
}