Gelfand, I. M. <br/><br/>
Calculus of variations / 
I. M. Gelfand, S. V. Fomin ; translated and edited by Richard A. Silverman 
 - Revised English ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1963 
 - vii, 232 p. ;  24 cm. 
 - Selected Russian publications in the mathematical sciences .
<br/><br/>Bibliography : p. 227 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of variations