%0 Journal Article %A D. N. Ivanov %T Balanced systems of primitive idempotents in matrix algebras %J Sbornik. Mathematics %D 2000 %P 543-565 %V 191 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2000_191_4_a3/ %G en %F SM_2000_191_4_a3