%0 Journal Article %A M. G. Krein %A F. É. Melik-Adamyan %T Some applications of the theorem on factorization of a unitary matrix %J Funkcionalʹnyj analiz i ego priloženiâ %D 1970 %P 73-75 %V 4 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a9/ %G ru %F FAA_1970_4_4_a9