@article{GDZPPN002026910,
title = {Factoring Groups and Tiling Space},
journal = {Aequationes mathematicae},
volume = {9},
year = {1973},
pages = {145-149},
zbl = {0288.20072},
url = {http://dml.mathdoc.fr/item/GDZPPN002026910}
}
HAMAKER, WILLIAM. Factoring Groups and Tiling Space. Aequationes mathematicae, Tome 9 (1973) pp. 145-149. http://gdmltest.u-ga.fr/item/GDZPPN002026910/