Brass, Helmut. “Über Die Koeffizienten Der Polynome Bester Approximation: On the Coefficients of Best Approximation Polynomials”. Anal. Numér. Théor. Approx. 7, no. 1 (February 1, 1978): 5–11. Accessed May 7, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1978-vol7-no1-art1.