@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa134-3-1,
author = {John L. Simons},
title = {Exotic Collatz cycles},
journal = {Acta Arithmetica},
volume = {135},
year = {2008},
pages = {201-209},
zbl = {1153.11013},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa134-3-1}
}
John L. Simons. Exotic Collatz cycles. Acta Arithmetica, Tome 135 (2008) pp. 201-209. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa134-3-1/