%0 Journal Article
%A R. V. Gamkrelidze
%T Necessary first order conditions, and the axiomatics of extremal problems
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1971
%P 152-180
%V 112
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1971_112_a10/
%G ru
%F TM_1971_112_a10