@incollection{SB_1969-1970__12__19_0,
     author = {Demazure, Michel},
     title = {Motifs des vari\'et\'es alg\'ebriques},
     booktitle = {S\'eminaire Bourbaki : vol. 1969/70, expos\'es 364-381},
     series = {S\'eminaire Bourbaki},
     note = {talk:365},
     pages = {19--38},
     publisher = {Springer-Verlag},
     number = {12},
     year = {1971},
     zbl = {0247.14004},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1969-1970__12__19_0/}
}