TY  - JOUR
AU  - V. V. Veremenyuk
TI  - The existence of the rotation number of the equation $\dot x=\lambda (t,x)$ with a right-hand side that is periodic in $x$ and almost periodic in $t$
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 1073
EP  - 1076
VL  - 27
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_6_a21/
LA  - ru
ID  - DE_1991_27_6_a21
ER  -