[plt-scheme] Help remembering an article about different ways to implement macros in Scheme

From: Grant Rettke (grettke at acm.org)
Date: Sun Feb 15 18:28:20 EST 2009

Once on this list someone referenced an article on the Bigloo mailing
list that explain all of the different ways that have been covered for
implementing macros in Scheme.It also explained how to implemement
hygiene in those different ways.

Does anyone recall that article?

It may have been linked on Lambda the Ultimate also; but I can't seem
to find it anywhere.

Posted on the users mailing list.