%0 Journal Article %A P. Tammela %T On the reduction theory of positive quadratic forms %J Doklady Akademii Nauk %D 1973 %P 1299-1302 %V 209 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_209_6_a12/ %G ru %F DAN_1973_209_6_a12