Giaquinta, Mariano <br/><br/>
Multiple integrals in the calculus of variations and nonlinear elliptic systems  / 

 - Princeton:  Princeton University Press,  1983 
 - vii, 296p. Bibl. 
 - Annals of Mathematics studies    105 .
<br/><br/><label>Dewey Class. No.: </label>515.64  / G434.MI