REFERENCES
- H. S. M. Coxeter and S. L. Greitzer, Geometry Revisited, MAA, Washington, 1967, pp. 4–5, 66–67.
- H. S. M. Coxeter, Introduction to Geometry, John Wiley and Sons, Inc., New York, 1969, pp. 216–221.
- H. Eves, A Survey of Geometry(I), Allyn & Bacon, Boston, 1963, pp. 76–78, 86, 290.
- C. W. Dodge and S. R. Mandan (independently), Comments on problem 414, Crux Math. 5 (1979), 304–306.
- J. Lipman, A generalization of Ceva's theorem, Amer. Math. Monthly 67 (1960), 162–163.
- D. Pedoe, The theorems of Ceva and Menelaus, Crux Math. 3 (1977), 2–4.
- H. Guelicher, Problem E3231, Amer. Math. Monthly 94 (1987), 876.
- M. S. Klamkin, An identity for some simplexes and related inequalities, Simon Steven 48 (1974/5), 57–64.
- J. R. Goggins, Perimeter bisectors, Math. Gaz. 70 (1986), 133–134.
- D. Schattschneider, Visions of Symmetry: the Notebooks, Periodic Drawings and Related Work of M. C. Escher, W. H. Freeman, New York, 1990.