1. Abel, U., Siebert, H.: An improvement of the constant in Videnskiĭ’s inequality for Bernstein polynomials. Georgian Math. J., to appear
2. Adell, J.A., Bustamante, J., Quesada, J.M.: Sharp upper and lower bounds for the moments of Bernstein polynomials. Appl. Math. Comput. 265, 723–732 (2015)
3. Gonska, H.: On the degree of approximation in Voronovskaja’s theorem. Stud. Univ. Babeş-Bolyai Math. 52, 103–115 (2007)
4. Gonska, H., Raşa, I.: Remarks on Voronovskaya’s theorem. Gen. Math. 16, 87–97 (2008)
5. Lorentz, G.G.: Bernstein Polynomials. University of Toronto Press, Toronto (1953)