%0 Journal Article
%A U. Raitums
%T The passage to the convex hull of a set of admissible operators in
%J Doklady Akademii Nauk
%D 1985
%P 289-292
%V 285
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a6/
%G ru
%F DAN_1985_285_2_a6