%0 Journal Article
%A S. N. Vassilyev
%T The comparison method in systems analysis.~I
%J Differencialʹnye uravneniâ
%D 1981
%P 1562-1573
%V 17
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_9_a2/
%G ru
%F DE_1981_17_9_a2