@article{TSG_1984-1985__3__A6_0,
     author = {Colin de Verdi\`ere, Yves},
     title = {Minorations de sommes de valeurs propres d'un domaine et conjecture de {Polya}},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     note = {talk:6},
     pages = {1--11},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {3},
     year = {1984-1985},
     zbl = {1002.58509},
     language = {fr},
     url = {http://archive.numdam.org/item/TSG_1984-1985__3__A6_0/}
}