00747nam0-22002531i-450-99000114982040332120070511102927.0000114982FED01000114982(Aleph)000114982FED0100011498220001205d1972----km-y0itay50------baengBanach algebra techniques in operator theoryby R. G. DouglasNew York [etc.]Academic Press1972Pure and applied mathematics49Douglas,Ronald G.54969ITUNINARICAUNIMARCBK990001149820403321C-27-(4912722MA1MA1Banach algebra techniques in operator theory78206UNINA