1. Artin, E.: The Gamma function. Holt, Rinehart and Winston (1964)
2. Baeza-Yates, R.A., Navarro, G.: New and faster filters for multiple approximate string matching. Random Struct. Algorithms 20(1), 23–49 (2002)
3. Lecture Notes in Computer Science;D. Cantone,2011
4. Cantone, D., Faro, S., Giaquinta, E.: Approximate string matching allowing for inversions and translocations. In: Holub, J., Žďárek, J. (eds.) Proceedings of the Prague Stringology Conference, pp. 37–51 (2010)
5. Cormen, T.H., Leiserson, C.E., Rivest, R.L., Stein, C.: Introduction to Algorithms, 3rd edn. MIT Press (2009)