@article{GDZPPN002441829,
title = {Harmonic maps into round cones and singularities of nematic liquid crystals.},
journal = {Mathematische Zeitschrift},
volume = {212},
year = {1993},
pages = {575-594},
zbl = {0790.58010},
url = {http://dml.mathdoc.fr/item/GDZPPN002441829}
}
Hardt, Robert; Lin, Fang Hua. Harmonic maps into round cones and singularities of nematic liquid crystals.. Mathematische Zeitschrift, Tome 212 (1993) pp. 575-594. http://gdmltest.u-ga.fr/item/GDZPPN002441829/