REFERENCES
- C. S. Ogilvy, “Exceptional Extremum Problems,” American Mathematical Monthly, Vol. 67 (March 1960), 270–275.
- Hugh A. Thurston, “So-Called ‘Exceptional’ Extremum Problems,” American Mathematical Monthly, Vol. 68 (September 1961), 650–652.
- J. L. Walsh, “A Rigorous Treatment of the First Maximum Problem in the Calculus,” American Mathematical Monthly, Vol. 54 (January 1947), 35–36.