TY  - JOUR
AU  - L. N. Orlova
TI  - The Geometry of a Quasilinear System of Two Partial Differential Equations Containing the First and the Second Partial Derivatives of Two Functions in Two Independent Variables
JO  - Matematičeskie zametki
PY  - 2009
SP  - 421
EP  - 432
VL  - 85
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2009_85_3_a9/
LA  - ru
ID  - MZM_2009_85_3_a9
ER  -