%0 Journal Article
%A E. R. Avakov
%A G. G. Magaril-Il'yaev
%A V. M. Tikhomirov
%T Lagrange's principle in extremum problems with constraints
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2013
%P 401-433
%V 68
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_2013_68_3_a1/
%G en
%F RM_2013_68_3_a1