Sources
- Burton, D. M. (2007). The history of mathematics, an introduction. McGraw-Hill Science/Engineering/Math.
- Jones, P. S. (1976). Pascal, Blaise. In The world book encyclopedia. (1st Edition ed., Vol. 11, 16, pp. 166-167). Chicago: Field Enterprises Educational Corporation.
- Pascal, B. (1900) Pensees. In G. Rawlings (Ed.) Pascal's Pensées or, Thoughts on religion. New York: Peter Pauper Press. (Reprinted from Pensees, 1670)
- Pascal, B. (1639) Essai Pour les Coniques.