@article{JRAM_1987__374_152894,
     author = {Frank Duzaar},
     title = {Variational inequalities and harmonic mappings.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {39--60},
     publisher = {mathdoc},
     volume = {374},
     year = {1987},
     zbl = {0597.58006},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1987__374_152894/}
}