%0 Journal Article
%A Adams, D.R.
%A Nussenzveig Lopes, H.J.
%T Nonlinear weakly elliptic $2\times 2$ systems of variational inequalities with unilateral obstacle constraints
%J Electronic Journal of Differential Equations
%D 1997
%V 1997
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_1997__1997__a30/
%G en
%F EJDE_1997__1997__a30