1. A. Aho, J. Hopcroft and J. Ullman, The Design and Analysis of Computer Algorithms, Addison-Wesley Publishing Co., Reading, MA, 1974.
2. La Tour d' Hanoï
3. The cyclic towers of Hanoi
4. W. W. Rouse Ball and H. S. M. Coxeter, Mathematical Recreations and Essays, 12th edition, University of Toronto Press, Toronto, 1974.
5. E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways for Your Mathematical Plays, Academic Press, London, 1982.