@incollection{JEDP_1996____A14_0,
     author = {Sun, Ziqi and Uhlmann, Gunther},
     title = {Electrical impedance tomography in nonlinear media},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {14},
     pages = {1--11},
     publisher = {Ecole polytechnique},
     year = {1996},
     mrnumber = {97m:35281},
     zbl = {0948.35512},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1996____A14_0/}
}