@incollection{SB_1956-1958__4__309_0,
     author = {Dieudonn\'e, Jean},
     title = {Extensions de repr\'esentations lin\'eaires de groupes de {Lie}},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1956/57 - 1957/58, expos\'es 137-168},
     series = {S\'eminaire Bourbaki},
     note = {talk:159},
     pages = {309--318},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {4},
     year = {1958},
     mrnumber = {1610938},
     zbl = {0088.02902},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1956-1958__4__309_0/}
}