TY  - JOUR
AU  - A. V. Zhiber
AU  - R. D. Murtazina
TI  - On the characteristic Lie algebras for equations $u_{xy}=f(u,u_x)$
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2006
SP  - 65
EP  - 78
VL  - 12
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2006_12_7_a4/
LA  - ru
ID  - FPM_2006_12_7_a4
ER  -