TY  - JOUR
AU  - A. V. Zhiber
TI  - Quasilinear hyperbolic equations with an infinite-dimensional symmetry algebra
JO  - Izvestiya. Mathematics 
PY  - 1995
SP  - 33
EP  - 54
VL  - 45
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1995_45_1_a1/
LA  - en
ID  - IM2_1995_45_1_a1
ER  -