%0 Journal Article
%A Caffarelli, L.
%A Lin, Fang-Hua
%T Singularly perturbed elliptic systems and multi-valued harmonic functions with free boundaries
%J Journal of the American Mathematical Society
%D 2008
%P 847-862
%V 21
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-08-00593-6/
%R 10.1090/S0894-0347-08-00593-6
%F 10_1090_S0894_0347_08_00593_6