@article{10_1090_S0894_0347_98_00256_2,
     author = {Eskin, Alex},
     title = {Quasi-isometric rigidity of nonuniform lattices in higher rank symmetric spaces},
     journal = {Journal of the American Mathematical Society},
     pages = {321--361},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1998},
     doi = {10.1090/S0894-0347-98-00256-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-98-00256-2/}
}