@incollection{SB_1973-1974__16__170_0,
     author = {Kervaire, Michel},
     title = {Fractions rationnelles invariantes},
     booktitle = {S\'eminaire Bourbaki. : vol. 1973/74, expos\'es 436-452},
     series = {S\'eminaire Bourbaki},
     note = {talk:445},
     pages = {170--189},
     publisher = {Springer-Verlag},
     number = {16},
     year = {1975},
     mrnumber = {435045},
     zbl = {0326.12103},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1973-1974__16__170_0/}
}