TY  - JOUR
AU  - R. F. Shaimuratov
TI  - On the frequency of recurrence
JO  - Russian journal of nonlinear dynamics
PY  - 2007
SP  - 401
EP  - 410
VL  - 3
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ND_2007_3_4_a2/
LA  - ru
ID  - ND_2007_3_4_a2
ER  -