Everitt, W.N (ed) <br/><br/>
Spectral theory & differential equations  proceedings of the symposium held at Dundee, Scotland, 1-19 July 1974 
Ed by W.N. Everitt 
 - Berlin  Springer  1975 
 - xii  321 
 - Lecture notes in mathematics 448 .
<br/><br/><label>ISBN: </label>3540071504 
<br/><br/><label>Dewey Class. No.: </label>5.03+22  / EVER