%0 Journal Article %A S. S. Ryshkov %T The polyhedron $\mu(m)$ and certain extremal problems of the geometry of numbers %J Doklady Akademii Nauk %D 1970 %P 514-517 %V 194 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_194_3_a8/ %G ru %F DAN_1970_194_3_a8