Cordes H O <br/><br/>
Elliptic pseudo-differential operators: An abstract theory 
Cordes H O 
 - Berlin  Springer Verlag          1979 
 - 331p.  cm. 
 - Lecture Notes in Mathematical; 756 .
<br/><br/><label>Standard No.: </label>22977 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B334, L91