00393nam a2200109Ia 4500008004100000082002000041100002300061245008700084260005000171300002100221490004100242250404b        |||||||| |||| 00| 0 eng d  a515.64bG434.MI  aGiaquinta, Mariano  aMultiple integrals in the calculus of variations and nonlinear elliptic systemsb/  aPrinceton:bPrinceton University Press,c1983  avii, 296p. Bibl.  aAnnals of Mathematics studies v 105