@article{GDZPPN002104091,
title = {L-groups of crystallographic groups.},
journal = {Inventiones mathematicae},
volume = {88},
year = {1987},
pages = {571-602},
zbl = {0622.57022},
url = {http://dml.mathdoc.fr/item/GDZPPN002104091}
}
Yamasaki, M. L-groups of crystallographic groups.. Inventiones mathematicae, Tome 88 (1987) pp. 571-602. http://gdmltest.u-ga.fr/item/GDZPPN002104091/