Douglas, Ronald G <br/><br/>
Banach algebra techniques in operator theory 
Ronald G Douglas 
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 - Academic Press, New York  1972 
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 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topological and related algebra and groups
<br/><br/><label>Dewey Class. No.: </label>R  512.55  DOU-B