@article{IM_1990__101_2_143812,
     author = {Marina Ratner},
     title = {Strict measure rigidity for unipotent subgroups of solvable groups.},
     journal = {Inventiones mathematicae},
     pages = {449--482},
     publisher = {mathdoc},
     volume = {101},
     number = {2},
     year = {1990},
     zbl = {0745.28009},
     url = {http://geodesic.mathdoc.fr/item/IM_1990__101_2_143812/}
}