@article{GDZPPN00221069X,
title = {Geometric P.D.E.'s with isolated singularities.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {435},
year = {1993},
pages = {1-42},
zbl = {0776.58038},
url = {http://dml.mathdoc.fr/item/GDZPPN00221069X}
}
Smale, Nathan. Geometric P.D.E.'s with isolated singularities.. Journal für die reine und angewandte Mathematik, Tome 435 (1993) pp. 1-42. http://gdmltest.u-ga.fr/item/GDZPPN00221069X/