TY  - JOUR
AU  - I. A. Rudakov
TI  - Periodic Solutions of a Nonlinear Wave Equation with Nonconstant Coefficients
JO  - Matematičeskie zametki
PY  - 2004
SP  - 427
EP  - 438
VL  - 76
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2004_76_3_a11/
LA  - ru
ID  - MZM_2004_76_3_a11
ER  -