Gelfand, I. M. <br/><br/>
Calculus of variations / 
I. M. Gelfand and S. V. Fomin ; translated and edited by Richard A. Silverman. 
 - New York :   Dover Publications,  2000. 
 - 232 p. ;   24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0486414485 9780486414485 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of variations<br/>Calculus<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.64  / GEL