%0 Journal Article %A I. M. Gel'fand %T On a~paper by K.~Hoffman and I.\,M.~Singer %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1960 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1960_15_3_a22/ %G ru %F RM_1960_15_3_a22