@article{AIF_1980__30_3_237_0,
     author = {B\'erard, Pierre and Besson, G\'erard},
     title = {Spectres et groupes cristallographiques. {II} : domaines sph\'eriques},
     journal = {Annales de l'Institut Fourier},
     pages = {237--248},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {30},
     number = {3},
     year = {1980},
     doi = {10.5802/aif.800},
     zbl = {0426.35073},
     mrnumber = {82e:58097b},
     language = {fr},
     url = {https://aif.centre-mersenne.org/articles/10.5802/aif.800/}
}