@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa133-3-1,
author = {Kevin Ford and Yong Hu},
title = {Divisors of the Euler and Carmichael functions},
journal = {Acta Arithmetica},
volume = {135},
year = {2008},
pages = {199-208},
zbl = {1237.11038},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa133-3-1}
}
Kevin Ford; Yong Hu. Divisors of the Euler and Carmichael functions. Acta Arithmetica, Tome 135 (2008) pp. 199-208. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa133-3-1/