Karsnov M. L.  <br/><br/>
Problems and exercises in the calculus of variations 

 - Moscow :  MIR Publisher ,   ©1975 
 - 222p. :  20cm (Paperback) 
<br/><br/>Includes index 
<br/><br/><label>Dewey Class. No.: </label>515.1  / KRA / G