@article{CRMATH_2016__354_4_377_0,
     author = {Andreas Kirsch},
     title = {A note on {Sylvester's} proof of discreteness of interior transmission eigenvalues},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {377--382},
     publisher = {Elsevier},
     volume = {354},
     number = {4},
     year = {2016},
     doi = {10.1016/j.crma.2016.01.015},
     language = {en},
}