@article{IM_1991__104_1_143900,
     author = {J.F. Voloch},
     title = {On the conjectures of {Mordell} and {Lang} in positive characteristics.},
     journal = {Inventiones mathematicae},
     pages = {643--646},
     publisher = {mathdoc},
     volume = {104},
     number = {1},
     year = {1991},
     zbl = {0735.14019},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__104_1_143900/}
}