@article{TSG_1996-1997__15__17_0,
     author = {Ahmad El Soufi and Sa{\"\i}d Ilias and Antonio Ros},
     title = {Sur la premi\`ere valeur propre des tores},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {17--23},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {15},
     year = {1996-1997},
     doi = {10.5802/tsg.176},
     zbl = {0902.58003},
     language = {fr},
     url = {https://proceedings.centre-mersenne.org/articles/10.5802/tsg.176/}
}