@article{AIHPB_2009__45_2_289_0,
     author = {Schapira, Bruno},
     title = {Random walk on a building of type $\~A_r$ and brownian motion of the {Weyl} chamber},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {289--301},
     publisher = {Gauthier-Villars},
     volume = {45},
     number = {2},
     year = {2009},
     doi = {10.1214/07-AIHP163},
     zbl = {1218.60003},
     language = {en},
     url = {http://www.numdam.org/articles/10.1214/07-AIHP163/}
}