@article{JLT_1999__9_2_223731,
     author = {Abels, Herbert},
     title = {Discrete groups of affine isometries.},
     journal = {Journal of Lie Theory},
     pages = {321},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1999},
     zbl = {1010.22019},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/JLT_1999__9_2_223731/}
}