TY  - JOUR
AU  - V. E. Pronchatov
TI  - On an error estimate for the averaging method in a~two-frequency problem
JO  - Sbornik. Mathematics
PY  - 1989
SP  - 29
EP  - 40
VL  - 62
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1989_62_1_a1/
LA  - en
ID  - SM_1989_62_1_a1
ER  -