%0 Journal Article
%A S. R. Gabdrakhmanov
%A V. V. Filippov
%T On the absence of periodic solutions of the equation $z'(t)=z^2+h(t)$
%J Differencialʹnye uravneniâ
%D 1997
%P 737-740
%V 33
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1997_33_6_a2/
%G ru
%F DE_1997_33_6_a2