@article{PORMA_1996__53_1_47660,
     author = {Zayed, E.M.E.},
     title = {An inverse problem for a general doubly-connected bounded domain with impedance boundary conditions.},
     journal = {Portugaliae mathematica},
     pages = {53--72},
     publisher = {mathdoc},
     volume = {53},
     number = {1},
     year = {1996},
     zbl = {0865.35144},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1996__53_1_47660/}
}