1. J.R. Angelos, E.H. Kaufmann jun., M.S. Henry, and T.D. Lenker, Optimal nodes for polynomial interpolation, in Approximation Theory VI, Vol. I (C.K. Chui, L.L. Schumaker, and J.D. Ward, eds.), Academic Press, New York, 1989, pp. 17–20
2. C. de Boor and A. Pinkus, Proof of the conjectures of Bernstein and Erdös concerning the optimal nodes for polynomial interpolation, J. Approx. Theory 24, 289–303 (1978)
3. L. Brutman, Lebesgue functions for polynomial interpolation - A survey, Ann. Numer. Math. 4, 111–127 (1997)
4. E.W. Cheney and W.A. Light, A Course in Approximation Theory, American Mathematical Society, Providence / RI, 2000
5. M.S. Henry, Approximation by polynomials: Interpolation and optimal nodes, Am. Math. Mon. 91, 497–499 (1984)