%0 Journal Article %A I. Ts. Gokhberg %T A factorization problem in normed rings, functions of isometric and symmetric operators and singular integral equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1964 %P 63-114 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1964_19_1_a1/ %G en %F RM_1964_19_1_a1