@article{NUMA_1972__19_132157,
     author = {S.M. Robinson},
     title = {Extension of {Newton's} {Method} to {Nonlinear} {Functions} with {Values} in a {Cone.}},
     journal = {Numerische Mathematik},
     pages = {341--347},
     publisher = {mathdoc},
     volume = {19},
     year = {1972},
     zbl = {0227.65040},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__19_132157/}
}