@article{ASENS_1987_4_20_2_271_0,
     author = {Ann\'e, Colette},
     title = {Spectre du laplacien et \'ecrasement d'anses},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {271--280},
     publisher = {Elsevier},
     volume = {4e s{\'e}rie, 20},
     number = {2},
     year = {1987},
     doi = {10.24033/asens.1533},
     mrnumber = {89m:58200},
     zbl = {0634.58035},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.1533/}
}