@article{PPN235181684_0270+dmdlog13,
title = {Iterated Ring Class Fields and the 168-Tesselation.},
journal = {Mathematische Annalen},
volume = {270},
year = {1985},
pages = {69-78},
zbl = {0559.12007},
url = {http://dml.mathdoc.fr/item/PPN235181684_0270+dmdlog13}
}
Cohn, Harvey. Iterated Ring Class Fields and the 168-Tesselation.. Mathematische Annalen, Tome 270 (1985) pp. 69-78. http://gdmltest.u-ga.fr/item/PPN235181684_0270+dmdlog13/