Gustafson Karl E <br/><br/>
Introduction differential equations and hilbert space methods 
Gustafson Karl E 
 - New York       John Wiley         1980 
 - xv, 270p.  cm. 
<br/><br/><label>Standard No.: </label>22834 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B334, M0