@incollection{SB_1976-1977__19__125_0,
     author = {Ra{\"\i}s, Mustapha},
     title = {Op\'erateurs diff\'erentiels bi-invariants},
     booktitle = {S\'eminaire Bourbaki : vol. 1976/77, expos\'es 489-506},
     series = {S\'eminaire Bourbaki},
     note = {talk:498},
     pages = {125--137},
     publisher = {Springer-Verlag},
     number = {19},
     year = {1978},
     mrnumber = {521764},
     zbl = {0385.22005},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1976-1977__19__125_0/}
}