%0 Journal Article %A G. F. Us %T The spectral decomposition of selfadjoint operators that are functions of operators acting on different variables %J Doklady Akademii Nauk %D 1976 %P 812-815 %V 229 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_229_4_a8/ %G ru %F DAN_1976_229_4_a8