TY  - JOUR
AU  - Kharibegashvili,  Sergo
AU  - Midodashvili,  Bidzina
TI  - Solvability of characteristic boundary-value problems for nonlinear equations with iterated wave operator in the principal part
JO  - Electronic journal of differential equations
PY  - 2008
VL  - 2008
UR  - http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a27/
LA  - en
ID  - EJDE_2008__2008__a27
ER  -