1. Aho, A. V., Sethi, D. and Ullman, J. D. 1982. “Compilers-Principles, Techniques, and Tools, Reading Mass”. Addison-Wesley.
2. Aho, A. V. and Ullman, J. D. 1983. “Data Structures and Algorithms”. Addison-Wesley.
3. The world's fastest Scrabble program
4. Collections of Functions for Perfect Hashing