@article{MM2_1992__77_2-3_155791,
     author = {Jie Qing},
     title = {Multiple solutions of the {Dirichlet} problem for harmonic maps from discs into 2-spheres.},
     journal = {Manuscripta mathematica},
     pages = {435--446},
     publisher = {mathdoc},
     volume = {77},
     number = {2-3},
     year = {1992},
     zbl = {0788.58018},
     url = {http://geodesic.mathdoc.fr/item/MM2_1992__77_2-3_155791/}
}