@article{PPN235181684_0255+dmdlog21,
title = {Iterated Ring Class Fields and the Icosahedron.},
journal = {Mathematische Annalen},
volume = {255},
year = {1981},
pages = {107-122},
zbl = {0437.12010},
url = {http://dml.mathdoc.fr/item/PPN235181684_0255+dmdlog21}
}
Cohn, Harvey. Iterated Ring Class Fields and the Icosahedron.. Mathematische Annalen, Tome 255 (1981) pp. 107-122. http://gdmltest.u-ga.fr/item/PPN235181684_0255+dmdlog21/