%0 Journal Article
%A V. V. Filippov
%T Remarks on Guiding Functions and Periodic Solutions
%J Differencialʹnye uravneniâ
%D 2001
%P 458-469
%V 37
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2001_37_4_a4/
%G ru
%F DE_2001_37_4_a4