@article{GDZPPN002204959,
title = {Harmonic maps which solve a free-boundary problem.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {374},
year = {1987},
pages = {61-89},
zbl = {0619.35117},
url = {http://dml.mathdoc.fr/item/GDZPPN002204959}
}
Gulliver, Robert; Jost, Jürgen. Harmonic maps which solve a free-boundary problem.. Journal für die reine und angewandte Mathematik, Tome 374 (1987) pp. 61-89. http://gdmltest.u-ga.fr/item/GDZPPN002204959/