@article{10_2307_121131,
     author = {Hyman Bass and Alexander Lubotzky},
     title = {Nonarithmetic superrigid groups: {Counterexamples} to {Platonov's} conjecture},
     journal = {Annals of mathematics},
     year = {2000},
     volume = {151},
     number = {3},
     doi = {10.2307/121131},
     zbl = {0963.22005},
     url = {http://geodesic.mathdoc.fr/articles/10.2307/121131/}
}