References

Ball, Philip. 2004. Critical Mass. Farrar, Straus; Giroux.

Plackett, R. L. 1958. Studies in the History of Probability and Statistics. VII. The Principle of the Arithmetic Mean. Biometrika, 45, P-130-135.

Thucydides. 1985. History of the Peloponnesian War. New York: Penguin Books Ltd.