TY  - JOUR
AU  - V. P. Sakhnenko
AU  - G. M. Chechin
TI  - Groups of modes and normal oscillations for nonlinear dynamical
JO  - Doklady Akademii Nauk
PY  - 1994
SP  - 42
EP  - 45
VL  - 338
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1994_338_1_a9/
LA  - ru
ID  - DAN_1994_338_1_a9
ER  -