Henrot, A <br/><br/>
Extremum problems for eigenvalues of elliptic operators 
A. Henrot 
 - Basel  Birkhauser-Verlag  2006 
 - x  202 
 - Frontiers in mathematics .
<br/><br/><label>ISBN: </label>9783764377052  
<br/><br/><label>Dewey Class. No.: </label>10.06  / HENR