@incollection{SB_1960-1961__6__219_0,
     author = {Chevalley, Claude},
     title = {Certains sch\'emas de groupes semi-simples},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1960/61, expos\'es 205-222},
     series = {S\'eminaire Bourbaki},
     note = {talk:219},
     pages = {219--234},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {6},
     year = {1961},
     mrnumber = {1611814},
     zbl = {0125.01705},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1960-1961__6__219_0/}
}