1. Littman, M.L., Keim, G.A., Shazeer, N.M.: A probabilistic approach to solving crossword puzzles. Journal of Artificial 134, 23–55 (2002)
2. Keim, G.A., Shazeer, N.M., Littman, M.L.: PROVERB: the probabilistic cruciverbalist. In: Proc. AAAI 1999, pp. 710–717 (1999)
3. Shazeer, N.M., Keim, G.A., Littman, M.L.: Solving crosswords as probabilistic contraint satisfaction. In: Proc. AAAI 1999, pp. 152–156 (1999)
4. Littman, M.L.: Review: computer language games. Journal of Computer and Games 134, 396–404 (2000)
5. Ginsberg, M.L., Frank, M., Halping, M.P., Torrance, M.C.: Search lessons learned from crossword puzzles. In: Proc. AAAI 1990, pp. 210–215 (1990)