Conference on "Spectral Theory of Differential Operators", Alabama, Brimingham, March 26-28, 1981 <br/><br/>
Spectral theory of differential operators; proceedings of the international conference  / 

 - Amsterdam:  North-Holland,  1981 
 - xv, 384p. 
 - North-Holland Mathematics studies  v. 55 .
<br/><br/><label>Dewey Class. No.: </label>515.72  / C748.ST