%0 Journal Article %A L. A. Kogan %T Representation of numbers by quadratic forms %J Informatics and Automation %D 1997 %P 248-261 %V 218 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1997_218_a15/ %G ru %F TRSPY_1997_218_a15