Andrew Russell Forsyth <br/><br/>
Calculus of variations 

 - UK  Cambridge university press  2011 
<br/><br/><label>ISBN: </label>9781107640832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Variations- calculus<br/>Derivatives
<br/><br/><label>Dewey Class. No.: </label>515.64  / FOR.C