@article{TSG_1999-2000__18__109_0,
     author = {B\'erard, Pierre},
     title = {Probl\`emes de valeurs propres et application \`a l'indice des surfaces de courbure moyenne constante},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {109--118},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {18},
     year = {1999-2000},
     mrnumber = {1812215},
     zbl = {0991.53004},
     language = {fr},
     url = {http://www.numdam.org/item/TSG_1999-2000__18__109_0/}
}