%0 Journal Article
%A N. Satimov
%T The composition of a differential equation from its solutions, and the proof of a lemma of L.\,S.~Pontrjagin
%J Differencialʹnye uravneniâ
%D 1978
%P 1208-1214
%V 14
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_7_a7/
%G ru
%F DE_1978_14_7_a7