REFERENCES
- D. G. Mead, “Integration,” American Mathematical Monthly, 68 (1961), 152–156. (Reprinted in Selected Papers in Calculus, ed. by T. M. Apostol, et al., Mathematical Association of America, 1968, 274–278.)
- R. H. Risch, “The Problem of Integration in Finite Terms,” Transactions of the American Mathematical Society, 139 (1969), 167–189.
- R. H. Risch, “The Solution of the Problem of Integration in Finite Terms,” Bulletin of the American Mathematical Society. 76, (1970), 605–608.
- J. F. Ritt, Integration in Finite Terms, New York: Columbia University Press, 1948.