@article{02174294,
title = {On a class of non linear differential operators of first order with singular point.},
journal = {Lobachevskii Journal of Mathematics},
volume = {17},
year = {2005},
pages = {25-41},
zbl = {1089.47047},
language = {en},
url = {http://dml.mathdoc.fr/item/02174294}
}
Benalili, Mohammed. On a class of non linear differential operators of first order with singular point.. Lobachevskii Journal of Mathematics, Tome 17 (2005) pp. 25-41. http://gdmltest.u-ga.fr/item/02174294/