prodeulerrat

[John Cremona <john.cremona@gmail.com>]

I'm using the prodeulerrat() function to compute a value which will be
published, so I want to give proper credit.  Of course I will credit
pari/gp itself using the guidelines at
http://pari.math.u-bordeaux.fr/faq.html#quote (and by the way, I think
it would be a good idea to have a direct link to that very clearly
visible on the home page).

I cannot see any specific credit for that function either in the users
manual or in the code, neither a person's name or a reference to any
literature.  I know that in Henri's Number Theory vol II there's a
method described on pages 208-210 (I may be working at home but I do
have a few essential books with me) and that refers to his
unpublished/unfinished notes hardylw.dvi, which I also have.   There
is also a 2000 paper by Moree with an appendix by Niklasch at
https://link.springer.com/article/10.1007/s002290050222  .

John