@article{CRMATH_2002__334_12_1095_0,
     author = {Lauter, Robert and Monthubert, Bertrand and Nistor, Victor},
     title = {Invariance spectrale des alg\`ebres d'op\'erateurs pseudodiff\'erentiels},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1095--1099},
     publisher = {Elsevier},
     volume = {334},
     number = {12},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02393-2},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/S1631-073X(02)02393-2/}
}