%0 Journal Article %A N. O. Kotelina %A A. B. Pevnyǐ %T Extremal properties of spherical semidesigns %J Algebra i analiz %D 2010 %P 131-139 %V 22 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2010_22_5_a4/ %G ru %F AA_2010_22_5_a4