Up: Recursion.

Recursive references

Concrete Mathematics, by Graham, Knuth, and Patashnik
A good discrete math book telling you everything you ever wanted to know about recurrences. The first section is about the Towers of Hanoi.
A Hanoi index
A thorough index of Towers of Hanoi links.
End of the world
Believe it or not, somebody has actually connected the monks to the Web so that we can hurry them along with their task. (I've had a few problems with this link recently.)
A link about self-reference
A short index of links about self-reference (closely tied to recursion).
This site.