Jost, J & Li-Jost, X <br/><br/>
Calculus of variations 
J. Jost & X. Li-Jost 
 - Cambridge  Cambridge University Press  1998 
 - xvi  323 
 - Cambridge studies in advanced mathematics 64 .
<br/><br/><label>ISBN: </label>9780521642033 
<br/><br/><label>Dewey Class. No.: </label>4.13  / JOST