TY  - JOUR
AU  - V. V. Kozlov
AU  - N. V. Denisova
TI  - Symmetries and the~topology of dynamical systems with two degrees of freedom
JO  - Sbornik. Mathematics
PY  - 1995
SP  - 105
EP  - 124
VL  - 80
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1995_80_1_a5/
LA  - en
ID  - SM_1995_80_1_a5
ER  -