@incollection{SB_1962-1964__8__159_0,
     author = {Atiyah, Michael F.},
     title = {The index of elliptic operators on compact manifolds},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1962/63 - 1963/64, expos\'es 241-276},
     series = {S\'eminaire Bourbaki},
     note = {talk:253},
     pages = {159--169},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {8},
     year = {1964},
     mrnumber = {1611539},
     zbl = {0124.31102},
     language = {en},
     url = {http://www.numdam.org/item/SB_1962-1964__8__159_0/}
}