@article{SJL_1974-1975___3_A4_0,
     author = {Crumeyrolle, A.},
     title = {Alg\`ebres de {Clifford} symplectiques et rev\^etements spinoriels du groupe symplectique},
     journal = {S\'eminaire Jean Leray},
     note = {talk:4},
     pages = {1--9},
     publisher = {Coll\`ege de France},
     number = {3},
     year = {1974-1975},
     language = {fr},
     url = {http://archive.numdam.org/item/SJL_1974-1975___3_A4_0/}
}