TY  - JOUR
AU  - Kunio Kakié
TI  - A Fundamental Property of Monge Characteristics in Involutive Systems of Non-Linear Partial Differential Equations and its Application.
JO  - Mathematische Annalen
PY  - 1985
SP  - 89
EP  - 114
VL  - 273
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1985__273_164040/
ID  - MAN_1985__273_164040
ER  -