[seqfan] Re: Need paper on 3x+1 problem

[Richard J. Mathar]

All I can see is that you can order that issue 42 (1) (2000) at a cost
of 11.50 Euros from http://www.aulis.de/newspaper_view/pm-praxis-der-mathematik-in-der-Schule.html

The first part of the article in issue 41 (2000) is cited in
http://dx.doi.org/10.7710/2168-0620.1002

A summary of the articles is in Lagarias' 71st citation in
http://arxiv.org/abs/math/0608208 .

R. J. Mathar