@incollection{SB_1979-1980__22__273_0,
     author = {Furstenberg, Harry},
     title = {Rigidity and cocycles for ergodic actions of semi-simple {Lie} groups},
     booktitle = {S\'eminaire Bourbaki : vol. 1979/80, expos\'es 543-560},
     series = {S\'eminaire Bourbaki},
     note = {talk:559},
     pages = {273--292},
     publisher = {Springer-Verlag},
     number = {22},
     year = {1981},
     mrnumber = {636529},
     zbl = {0471.22007},
     language = {en},
     url = {http://archive.numdam.org/item/SB_1979-1980__22__273_0/}
}