@article{GDZPPN002090694, title = {Strong Rigidity of Q-Rank 1 Lattices.}, journal = {Inventiones mathematicae}, volume = {20}, year = {1973}, pages = {255-286}, zbl = {0264.22009}, url = {http://dml.mathdoc.fr/item/GDZPPN002090694} }
Prasad, Gopal. Strong Rigidity of Q-Rank 1 Lattices.. Inventiones mathematicae, Tome 20 (1973) pp. 255-286. http://gdmltest.u-ga.fr/item/GDZPPN002090694/