@article{1077378983,
author = {Colton, David and Gilbert, Robert P.},
title = {Nonlinear, analytic partial differential equations with generalized Goursat data},
journal = {Duke Math. J.},
volume = {37},
number = {1},
year = {1970},
pages = { 367-376},
language = {en},
url = {http://dml.mathdoc.fr/item/1077378983}
}
Colton, David; Gilbert, Robert P. Nonlinear, analytic partial differential equations with generalized Goursat data. Duke Math. J., Tome 37 (1970) no. 1, pp. 367-376. http://gdmltest.u-ga.fr/item/1077378983/