@article{10_4007_annals_2009_170_67,
     author = {David Fisher and Gregory Margulis},
     title = {Local rigidity of affine actions of higher rank groups and lattices},
     journal = {Annals of mathematics},
     pages = {67--122},
     publisher = {mathdoc},
     volume = {170},
     number = {1},
     year = {2009},
     doi = {10.4007/annals.2009.170.67},
     mrnumber = {2521112},
     zbl = {1186.22015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.170.67/}
}