Gelfand, I. M. <br/><br/>
Calculus of variations  / 

 - Rev. enlarged 
 - New Jersey:  Prentice-Hall,  1963 
 - vii, 232p. Index 
 - Selected Russian publications in Mathematical Sciences .
<br/><br/><label>Dewey Class. No.: </label>515.64  / G316.CV