@article{ASENS_2007_4_40_2_209_0,
     author = {Guivarc'h, Yves and Raugi, Albert},
     title = {Actions of large semigroups and random walks on isometric extensions of boundaries},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {209--249},
     publisher = {Elsevier},
     volume = {Ser. 4, 40},
     number = {2},
     year = {2007},
     doi = {10.1016/j.ansens.2007.01.003},
     mrnumber = {2339285},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.ansens.2007.01.003/}
}