%0 Journal Article %A V. N. Sachkov %T On extremal points of the space of symmetric stochastic matrices %J Sbornik. Mathematics %D 1975 %P 419-428 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1975_25_3_a4/ %G en %F SM_1975_25_3_a4