Fraenkel, L. E. <br/><br/>
An introduction to maximum principles and symmetry in elliptic problems 
L. E. Fraenkel 
 - Cambridge  Cambridge University Press  20 
 -  x, 340p. 
<br/><br/> Includes index and bibliography 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0-521-46195-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elliptic functions (Mathematics)
<br/><br/><label>Dewey Class. No.: </label>515.983  / FRI