1. Abel, U.: An inequality involving Bernstein polynomials and convex functions. J. Approx. Theory 222, 1–7 (2017)
2. Abel, U., Leviatan, D.: An extension of Raşa’s conjecture to $$q$$-monotone functions. Results Math. 75:180, 1–13 (2020)
3. Abel, U., Leviatan, D., Raşa, I.: Relations between the Bernstein polynomials and $$q$$-monotone functions. Results Math. 77:239, 1–12 (2022)
4. Abel, U., Raşa, I.: A sharpening of a problem on Bernstein polynomials and convex functions. Math. Inequ. Appl. 21, 773–777 (2018)
5. Lorentz, G.G.: Bernstein polynomials, Mathematical Expositions, No. 8., University of Toronto Press, Toronto, (1953)