@article{IM_1984__78_143165,
     author = {Richard Schoen and Karen Uhlenbeck},
     title = {Regularity of minimizing harmonic maps into the sphere.},
     journal = {Inventiones mathematicae},
     pages = {89--100},
     year = {1984},
     volume = {78},
     zbl = {0555.58011},
     url = {http://geodesic.mathdoc.fr/item/IM_1984__78_143165/}
}