Erdelyi, I (ed) <br/><br/>
Operator theory & functional analysis 
Ed by I. Erdelyi 
 - San Fransisco  Pitman Advanced Publishing Program  1979 
 - 164 
 - Research notes in mathematics 38 .
<br/><br/><label>ISBN: </label>0822484501 
<br/><br/><label>Dewey Class. No.: </label>5.03  / ERDE