@incollection{SB_1980-1981__23__23_0,
     author = {G\'erardin, Paul},
     title = {Formes automorphes associ\'ees aux cycles g\'eod\'esiques des surfaces de {Riemann} hyperboliques},
     booktitle = {S\'eminaire Bourbaki : vol. 1980/81, expos\'es 561-578},
     series = {S\'eminaire Bourbaki},
     note = {talk:562},
     pages = {23--35},
     publisher = {Springer-Verlag},
     number = {23},
     year = {1981},
     mrnumber = {647486},
     zbl = {0478.30034},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1980-1981__23__23_0/}
}