@misc{NMARSBB_1841__14_251949,
     title = {[unknown]},
     journal = {Nouveaux m\'emoires de l 'Acad\'emie Royale des Sciences et Belles-Lettres de Bruxelles},
     pages = {18--18},
     publisher = {mathdoc},
     volume = {14},
     year = {1841},
     url = {http://geodesic.mathdoc.fr/item/NMARSBB_1841__14_251949/}
}