00764nam0-22002531i-450-990001265500403321000126550FED01000126550(Aleph)000126550FED0100012655020000920d1987----km-y0itay50------baengBanach algebras with symbol and singular integral operatorsder KrupnikBasel [etc.]Birkhauser1987Operator theory, advances and applications26Krupnik,N.42276ITUNINARICAUNIMARCBK990001265500403321C-5-(264746MA1MA1Banach algebras with symbol and singular integral operators380015UNINAING01