TY  - JOUR
AU  - V. I. Zubov
TI  - Normal form of the phase space of a mechanical system
JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 273
EP  - 276
VL  - 313
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_313_2_a2/
LA  - ru
ID  - DAN_1990_313_2_a2
ER  -