@article{MAN_1886__27_157207,
     author = {Markoff},
     title = {Sur les racines de certaines \'equations},
     journal = {Mathematische Annalen},
     pages = {143--150},
     publisher = {mathdoc},
     volume = {27},
     year = {1886},
     url = {http://geodesic.mathdoc.fr/item/MAN_1886__27_157207/}
}