Ekeland, Ivar  <br/><br/>
Convex Analysis and Variational Problems 
Ekeland, Ivar & Temam, Roger 
 - Philadelphia  Siam  1999 
 - 355  Illustration & reference 
<br/><br/><label>ISBN: </label>898714508 
<br/><br/><label>Dewey Class. No.: </label>519.6  / Ek22