1. N.Alon, and J.Hastad: Private communication. 1988.
2. M.Ajtai, and A.Wigderson: Deterministic simulation of probabilistic constant depth circuits, In 26 th Annual Symposium on Foundations of Computer Science, Portland, Oregon, (1985), 11–19.
3. C. E.Bonferroni: Teoria statistica delle classi e calcolo dell probabilita, Involume in onore di Ricardo Dalla Volta, Universita di Firenze, (1937), 1–62.
4. E. W.Cheney.:Approximation Theory, McGraw-Hill Book Co.,1966.
5. S. M. Kwerel: Most stringent bounds on aggregated probabilities of partially specified dependent probability systems,J. Am. Stat. Assoc. 70, (1975), 472–479.