%0 Journal Article %A E. P. Baranovskii %A S. S. Ryshkov %A S. Sh. Shushbaev %T A~geometric estimate of the number of representations of a~real number by a~positive quadratic form and an estimate of the remainder term of the multidimensiona %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1981 %P 3-8 %V 158 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1981_158_a0/ %G ru %F TM_1981_158_a0