@article{MAN_1965__159_182673,
     author = {D. GALE and H. NIKAID\^O},
     title = {The {Jacobian} {Matrix} and {Global} {Univalence} of {Mappings.}},
     journal = {Mathematische Annalen},
     pages = {81--93},
     year = {1965},
     volume = {159},
     zbl = {0158.04903},
     url = {http://geodesic.mathdoc.fr/item/MAN_1965__159_182673/}
}