@article{MAN_1883__22_157109,
     author = {St\'ephanos},
     title = {Sur la th\'eorie des quaternions.},
     journal = {Mathematische Annalen},
     pages = {589--592},
     publisher = {mathdoc},
     volume = {22},
     year = {1883},
     zbl = {15.0582.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1883__22_157109/}
}