%0 Journal Article %A M. T. Karaev %T Banach Algebra Technique for Proving an Addition Formula for Spectral Multiplicities of Sets of Operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 2007 %P 93-95 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2007_41_1_a6/ %G ru %F FAA_2007_41_1_a6