%0 Journal Article %A Daniela De Silva %T Free boundary regularity for a problem with right hand side %J Interfaces and free boundaries %D 2011 %P 223-238 %V 13 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4171/ifb/255/ %R 10.4171/ifb/255 %F 10_4171_ifb_255