%0 Journal Article
%A V. I. Plotnikov
%A V. I. Sumin
%T The first variation and the associated problem in optimal control theory
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1976
%P 95-96
%V 10
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1976_10_4_a14/
%G ru
%F FAA_1976_10_4_a14