%0 Journal Article %A V. N. Sushko %A S. S. Horuzhy %T Vector states on algebras of observables and superselection rules I. Vector states and Hilbert space %J Teoretičeskaâ i matematičeskaâ fizika %D 1970 %P 171-195 %V 4 %N 2 %U http://geodesic.mathdoc.fr/item/TMF_1970_4_2_a2/ %G ru %F TMF_1970_4_2_a2