1. Chess 4.5 – The Northwestern University chess program;Atkin,1988
2. The technology chess program;Gillogly,1988
3. An analysis of α–β pruning;Knuth;Artificial Intelligence,1975
4. J. Pearl, Scout: A simple game-searching algorithm with proven optimal properties, in Proceedings of the First Annual National Conference on Artificial Intelligence, pp.143–145, 1980.
5. Parallel search of strongly ordered game trees;Marsland;ACM Computing Surveys,1982