@article{GDZPPN002228572,
title = {Regularity and uniqueness of harmonic maps into and ellipsoid.},
journal = {Manuscripta mathematica},
volume = {61},
year = {1988},
pages = {235-258},
zbl = {0646.58020},
url = {http://dml.mathdoc.fr/item/GDZPPN002228572}
}
Helein, Frédéric. Regularity and uniqueness of harmonic maps into and ellipsoid.. Manuscripta mathematica, Tome 61 (1988) pp. 235-258. http://gdmltest.u-ga.fr/item/GDZPPN002228572/