TY  - JOUR
AU  - Yu. B. Suris
TI  - Symbolic dynamics for a nonlinear nonautonomous oscillator
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 535
EP  - 538
VL  - 23
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_3_a29/
LA  - ru
ID  - DE_1987_23_3_a29
ER  -