1. Critani, F., Dall’Aglio, M., Di Biase, G.: Ranking and unranking permutations with applications. In: Innovation in Mathematics. In: Proceedings of Second International Mathematica Symposium, pp. 99–106 (1997)
2. Ruskey, F., Jiang, M., Weston, A.: The Hamiltonicity of directed-Cayley graphs (or: A tale of backtracking). Discrete Appl. Math. 57, 75–83 (1995)
3. Ruskey, F., Savage, C.: Hamilton Cycles that Extend Transposition Matchings in Cayley Graphs of Sn. SIAM Journal on Discrete Mathematics 6(1), 152–166 (1993)
4. Slocum, J., Sonneveld, D.: The 15 Puzzle Book. The Slocum Puzzle Foundation, Beverly Hills, CA, USA (2006)
5. Liebehenschel, J.: Ranking and Unranking of Lexicographically Ordered Words: An Average-Case Analysis. Journal of Automata, Languages and Combinatorics 2(4), 227–268 (1997)