%0 Journal Article %A D. V. Beklemishev %T Linear systems of quadratic forms %J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara %D 1971 %P 173-192 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTG_1971_3_a7/ %G ru %F INTG_1971_3_a7