%0 Journal Article
%A I. A. Kuzin
%T A variational method for determining the critical points of a
%J Doklady Akademii Nauk
%D 1990
%P 85-88
%V 314
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a20/
%G ru
%F DAN_1990_314_1_a20