%0 Journal Article
%A I. A. Shishmarev
%T The Cauchy problem for hypoelliptic systems and representation of the interaction
%J Differencialʹnye uravneniâ
%D 1979
%P 1337-1339
%V 15
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_7_a18/
%G ru
%F DE_1979_15_7_a18