1. Alatabbi, A., Daykin, J.W., Kärkkäinen, J., Rahman, M.S., Smyth, W.F.: V-Order: new combinatorial properties & a simple comparison algorithm. Discrete Appl. Math. 215, 41–46 (2016)
2. Alatabbi, A., Daykin, J.W., Mhaskar, N., Rahman, M.S., Smyth, W.F.: A faster V-Order string comparison algorithm. In: Proceedings of Prague Stringology Conference, pp. 38–48 (2018)
3. Chen, K.T., Fox, R.H., Lyndon, R.C.: Free differential calculus, iv - the quotient groups of the lower central series. Ann. Math. 68, 81–95 (1958)
4. Crochemore, M., Hancart, C., Lecroq, T.: Algorithms on Strings. Cambridge University Press, New York (2007)
5. Danh, T.-N., Daykin, D.E.: The structure of V-Order for integer vectors. In: Hilton, A.J.W. (ed.) Congressus Numerantium, Utilitas Mat. Pub. Inc., Winnipeg, Canada, vol. 113, pp. 43–53 (1996)