%0 Journal Article %A Zayed, E.M.E. %T An inverse problem for a general doubly-connected bounded domain with impedance boundary conditions. %J Portugaliae mathematica %D 1996 %P 53-72 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1996__53_1_47660/ %G en %F PORMA_1996__53_1_47660