%0 Journal Article %A L. A. Kogan %T Theory of modular forms and the problem of finding formulas for the number of representations of numbers by positive quadratic forms %J Doklady Akademii Nauk %D 1968 %P 259-261 %V 182 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_182_2_a3/ %G ru %F DAN_1968_182_2_a3