TY  - JOUR
AU  - O. I. Morozov
TI  - Contact-equivalence problem for linear hyperbolic equations
JO  - Trudy Seminara im. I.G. Petrovskogo
PY  - 2006
SP  - 119
EP  - 142
VL  - 25
IS  - 25
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TSP_2006_25_25_a6/
LA  - ru
ID  - TSP_2006_25_25_a6
ER  -