TY  - JOUR
AU  - V. V. Lychagin
TI  - Lokal classification of non-lineral first order partial differential equations
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1975
SP  - 105
EP  - 175
VL  - 30
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1975_30_1_a2/
LA  - en
ID  - RM_1975_30_1_a2
ER  -