TY  - JOUR
AU  - M. B. Sevryuk
TI  - Partial Preservation of Frequencies and Floquet Exponents in KAM Theory
JO  - Informatics and Automation
PY  - 2007
SP  - 174
EP  - 202
VL  - 259
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_2007_259_a11/
LA  - ru
ID  - TRSPY_2007_259_a11
ER  -