@article{BSMF_1980__108__333_0,
     author = {B\'erard, Pierre and Besson, G\'erard},
     title = {Remarque sur un article de {Marcel} {Berger} : {\guillemotleft} {Sur} une in\'egalit\'e pour la premi\`ere valeur propre du laplacien {\guillemotright}},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {333--336},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {108},
     year = {1980},
     doi = {10.24033/bsmf.1922},
     mrnumber = {83c:58082},
     zbl = {0456.35068},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1922/}
}