Dacorogna, B <br/><br/>
Introduction to the calculus of variations 
B. Dacorogna 
 - London  Imperial College Press  2004 
 - xii  228 
<br/><br/><label>ISBN: </label>186094499X 
<br/><br/><label>Dewey Class. No.: </label>4.13  / DACO