@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/