TY  - JOUR
AU  - Ibragimov, R.N.
TI  - Approximate equivalence transformations and invariant solutions of a perturbed nonlinear wave equation
JO  - Electronic Journal of Differential Equations
PY  - 2001
VL  - 2001
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a175/
LA  - en
ID  - EJDE_2001__2001__a175
ER  -