TY  - JOUR
AU  - L. A. Kalyakin
TI  - Asymptotic integration of hyperbolic equations with weakly nonlinear perturbation
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 351
EP  - 353
VL  - 20
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_2_a22/
LA  - ru
ID  - DE_1984_20_2_a22
ER  -