Colombini F, <br/><br/>
Partial differential equations and the calculu of variations  
by F Colombini[et al]... 
 - Italy  Birkhauser  1989 
 - 518P. 
<br/><br/><label>ISBN: </label>0-8176-3424-X 
<br/><br/><label>Dewey Class. No.: </label>B324  / M9