%0 Journal Article
%A V. V. Veremenyuk
%T 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 $t$
%J Differencialʹnye uravneniâ
%D 1991
%P 1073-1076
%V 27
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_6_a21/
%G ru
%F DE_1991_27_6_a21