TY  - JOUR
AU  - Yu. N. Bibikov
TI  - A sharpening of a theorem of Moser
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 766
EP  - 769
VL  - 213
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_213_4_a2/
LA  - ru
ID  - DAN_1973_213_4_a2
ER  -