[r-t] Change ringing mentioned in "The Art of Computer Programming" Vol. 4A

[Mark Davies]

Ander writes,

> Actually I'm fairly familiar with all these papers.  What do you want to
> know?

Well, who are the authors, and what is their connection with the world 
of changeringing?

I hope the answer is not that "Carla Savage" is a pseudonym for "Ander 
Holroyd"...

MBD