@incollection{SB_1948-1951__1__245_0,
     author = {Koszul, Jean-Louis},
     title = {Alg\`ebres de {Jordan}},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1948/49 - 1949/50 - 1950/51, expos\'es 1-49},
     series = {S\'eminaire Bourbaki},
     note = {talk:31},
     pages = {245--256},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {1},
     year = {1952},
     mrnumber = {1605189},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1948-1951__1__245_0/}
}