@article{05142856, title = {Recent progress on the boundary rigidity problem.}, journal = {Electronic Research Announcements of the American Mathematical Society [electronic only]}, volume = {11}, year = {2005}, pages = {64-70}, doi = {10.1090/S1079-6762-05-00148-4}, zbl = {1113.53027}, language = {en}, url = {http://dml.mathdoc.fr/item/05142856} }
Stefanov, Plamen; Uhlmann, Gunther. Recent progress on the boundary rigidity problem.. Electronic Research Announcements of the American Mathematical Society [electronic only], Tome 11 (2005) pp. 64-70. doi : 10.1090/S1079-6762-05-00148-4. http://gdmltest.u-ga.fr/item/05142856/