1. Some methods of controlling the tree search in chess programs;Adelson-Velskiy;Artificial Intelligence,1975
2. An analysis of minimax;Beal,1980
3. Benefits of minimax;Beal,1982
4. Mixing heuristic and perfect evaluations: Nested minimax;Beal;ICCA J.,1984
5. Selective search without tears;Beal;ICCA J.,1986