%0 Journal Article
%A B. N. Delone
%A S. S. Ryshkov
%T Extremal problems of the theory of positive quadratic forms
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1971
%P 203-223
%V 112
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1971_112_a12/
%G ru
%F TM_1971_112_a12