@article{PMIHES_2009__109__113_0,
     author = {Prasad, Gopal and Rapinchuk, Andreis.},
     title = {Weakly commensurable arithmetic groups and isospectral locally symmetric spaces},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {113--184},
     publisher = {Springer-Verlag},
     volume = {109},
     year = {2009},
     doi = {10.1007/s10240-009-0019-6},
     mrnumber = {2511587},
     zbl = {1176.22011},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1007/s10240-009-0019-6/}
}