Spectral theory of differential operators:  proceedings of the conference held at the University of Alabama in Birmingham, Birmingham, Alabama, U.S.A., March 26-28, 1981/ 
edited by Ian W. Knowles and Roger T.Lewis 
 - Amsterdam:  North-Holland,  1981 
 - 384 pages;   24cm. 
 - North Holland mathematics studies  .5 .
<br/><br/><label>ISBN: </label>0444862773 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential operators--Congresses.<br/>Spectral theory (Mathematics)--Congresses.