%0 Journal Article
%A Cuoghi,  Paola
%A Salani,  Paolo
%T Convexity of level sets for solutions to nonlinear elliptic problems in convex rings
%J Electronic journal of differential equations
%D 2006
%V 2006
%U http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a41/
%G en
%F EJDE_2006__2006__a41