Hermann, Robert. <br/><br/>
Differential geometry and the calculus of variations. 

 - New York:  Academic Press,  1968. 
 - x, 440 p. :  ill. ;  24 cm. 
 - Mathematics in science and engineering  v. 49. .
<br/><br/>Includes bibliographical references (p. 431-433). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Differential.<br/>Calculus of variations.
<br/><br/><label>Dewey Class. No.: </label>516.7 HER