@article{MSH_1981__74__37_0, author = {Weyl, Hermann}, title = {Le fant\^ome de la modalit\'e}, journal = {Math\'ematiques et sciences humaines}, pages = {37--60}, publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique}, volume = {74}, year = {1981}, mrnumber = {637325}, zbl = {0472.03001}, language = {fr}, url = {http://archive.numdam.org/item/MSH_1981__74__37_0/} }