@article{CRMATH_2018__356_6_626_0,
     author = {Audibert, Lorenzo and Chesnel, Lucas and Haddar, Houssem},
     title = {Transmission eigenvalues with artificial background for explicit material index identification},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {626--631},
     publisher = {Elsevier},
     volume = {356},
     number = {6},
     year = {2018},
     doi = {10.1016/j.crma.2018.04.015},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2018.04.015/}
}