@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}, volume = {30}, number = {3}, year = {1980}, doi = {10.5802/aif.800}, zbl = {0426.35073}, mrnumber = {82e:58097b}, language = {fr}, url = {http://www.numdam.org/articles/10.5802/aif.800/} }