@article{JLT_2004_14_1_JLT_2004_14_1_a3,
     author = {M. Steiner},
     title = {Metric {Rigidity} of {Crystallographic} {Groups}},
     journal = {Journal of Lie theory},
     pages = {035--068},
     year = {2004},
     volume = {14},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JLT_2004_14_1_JLT_2004_14_1_a3/}
}