@article{1270043478, author = {IZUMIYA, Shyuichi}, title = {A Normal Form of First Order Partial Differential Equations with Singular Solution}, journal = {Tokyo J. of Math.}, volume = {18}, number = {2}, year = {1995}, pages = { 485-488}, language = {en}, url = {http://dml.mathdoc.fr/item/1270043478} }
IZUMIYA, Shyuichi. A Normal Form of First Order Partial Differential Equations with Singular Solution. Tokyo J. of Math., Tome 18 (1995) no. 2, pp. 485-488. http://gdmltest.u-ga.fr/item/1270043478/