%0 Journal Article %A S. V. Konyagin %T Systems of vectors in Euclidean space and an extremal problem for polynomials %J Matematičeskie zametki %D 1981 %P 63-74 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1981_29_1_a7/ %G ru %F MZM_1981_29_1_a7