%0 Journal Article
%A I. V. Gel'man
%T Some functional spaces and their applications to variation problems
%J Doklady Akademii Nauk
%D 1958
%P 547-550
%V 122
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_122_4_a1/
%G ru
%F DAN_1958_122_4_a1