@incollection{SB_1974-1975__17__35_0,
     author = {Gramain, Andr\'e},
     title = {Sph\`eres d'homologie rationnelle},
     booktitle = {S\'eminaire Bourbaki : vol. 1974/75, expos\'es 453-470},
     series = {S\'eminaire Bourbaki},
     note = {talk:455},
     pages = {35--52},
     publisher = {Springer-Verlag},
     number = {17},
     year = {1976},
     mrnumber = {461526},
     zbl = {0335.57010},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1974-1975__17__35_0/}
}