@article{1250128489,
author = {Farkas, Daniel R.},
title = {Crystallographic groups and their mathematics},
journal = {Rocky Mountain J. Math.},
volume = {11},
number = {4},
year = {1981},
pages = { 511-552},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128489}
}
Farkas, Daniel R. Crystallographic groups and their mathematics. Rocky Mountain J. Math., Tome 11 (1981) no. 4, pp. 511-552. http://gdmltest.u-ga.fr/item/1250128489/