1. The cyclic towers of Hanoi;Atkinson;Inform. Process. Lett.,1981
2. Mutants of Hanoi;Celko;ABACUS,1984
3. La Nature;DeParville,1884
4. The colour towers of Hanoi: A generalization;Er;Computer J.,1984
5. The generalized towers of Hanoi problem;Er;J. Inform. Optim. Sci.,1984