@article{10_2307_121062, author = {Alex Furman}, title = {Gromov's measure equivalence and rigidity of higher rank lattices}, journal = {Annals of mathematics}, year = {1999}, volume = {150}, number = {3}, doi = {10.2307/121062}, zbl = {0943.22013}, url = {http://geodesic.mathdoc.fr/articles/10.2307/121062/} }