@article{01367445,
title = {Weighted Sobolev descent for singular first order partial differential equations.},
journal = {Southwest Journal of Pure and Applied Mathematics [electronic only]},
volume = {2},
year = {1999},
pages = {41-50},
zbl = {0936.65124},
language = {en},
url = {http://dml.mathdoc.fr/item/01367445}
}
Mahavier, W.T. Weighted Sobolev descent for singular first order partial differential equations.. Southwest Journal of Pure and Applied Mathematics [electronic only], Tome 2 (1999) pp. 41-50. http://gdmltest.u-ga.fr/item/01367445/