@article{AIF_1980__30_1_109_0,
     author = {Besson, G\'erard},
     title = {Sur la multiplicit\'e de la premi\`ere valeur propre des surfaces riemanniennes},
     journal = {Annales de l'Institut Fourier},
     pages = {109--128},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {30},
     number = {1},
     year = {1980},
     doi = {10.5802/aif.777},
     zbl = {0417.30033},
     mrnumber = {81h:58059},
     language = {fr},
     url = {https://aif.centre-mersenne.org/articles/10.5802/aif.777/}
}