At the time of the convention at least, Urban's implementation was not
publicly available. I remember discussing that with him. The work was
very complicated and uncommented, so I could see there was good reason
not to share it then. I'm still curious about it though, maybe we
should just ask him.
List
I rediscovered the presentation from the Weimar PdCon from Urban Schlemmer
on reverb design in Pd. The appendices list a set of abstractions and
objects from Schlemmer and others, but I have not found an online source
for these. Of the listed abstractions, I have only Miller's basic reverb
