%0 Journal Article
%A E. E. Barbashina
%T A package with variable control variations.~I
%J Differencialʹnye uravneniâ
%D 1984
%P 1297-1308
%V 20
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_8_a1/
%G ru
%F DE_1984_20_8_a1