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Reference11 articles.
1. Z. Ditzian and V. Totik, Moduli of Smoothness, Springer, New York (1987).
2. I. V. Smazhenko, “On the degree of copositive approximation,” J. Concr. Appl. Math. (2004).
3. S. P. Zhou, “A counterexample in copositive approximation,” Isr. J. Math., 78, 75–83 (1992).
4. I. A. Shevchuk, Polynomial Approximation and Traces of Functions Continuous on an Interval [in Russian], Naukova Dumka, Kiev (1992).
5. D. Leviatan, “Monotone and comonotone approximation revisited,” J. Approxim. Theor., 53, 1–16 (1988).