@article{AIHPA_1980__33_3_235_0,
     author = {Crumeyrolle, A.},
     title = {Alg\`ebres de {Clifford} d\'eg\'en\'er\'ees et rev\^etements des groupes conformes affines orthogonaux et symplectiques},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {235--249},
     publisher = {Gauthier-Villars},
     volume = {33},
     number = {3},
     year = {1980},
     mrnumber = {601839},
     zbl = {0454.53010},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1980__33_3_235_0/}
}