@article{05575256, title = {The inverse problem for elliptic equations from Dirichlet to Neumann map in multiply connected domains.}, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/305291}, zbl = {1171.35492}, language = {en}, url = {http://dml.mathdoc.fr/item/05575256} }
Wen, Guochun; Xu, Zuoliang; Yang, Fengmin. The inverse problem for elliptic equations from Dirichlet to Neumann map in multiply connected domains.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/305291. http://gdmltest.u-ga.fr/item/05575256/