@article{JOLT_1999_9_2_a3,
     author = {H. Abels},
     title = { Discrete {Groups} of {Affine} {Isometries}},
     journal = {Journal of Lie Theory},
     pages = {321--350},
     year = {1999},
     volume = {9},
     number = {2},
     doi = {10.5802/jolt.174},
     zbl = {1010.22019},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.174/}
}