1. Abel, U., Karsli, H.: Complete asymptotic expansions for Bernstein–Chlodovsky polynomials. In: Ivanov, K., Nikolov, G., Uluchev, R. (eds.) Constructive Theory of Functions, Sozopol 2016, pp. 1–11. Prof. Marin Drinov Academic Publishing House, Sofia (2018)
2. Abel, U., Karsli, H.: Asymptotic expansions for Bernstein–Durrmeyer–Chlodovsky polynomials. Results Math. 73, 104 (2018)
3. Abel, U., Karsli, H.: A complete asymptotic expansion for Bernstein–Chlodovsky polynomials for functions on $$\mathbb{R}$$. Mediterr. J. Math. 17, 201 (2020)
4. Albrycht, J., Radecki, J.: On a generalization of the theorem of Voronovskaya. Zeszyty Naukowe UAM Poznan. 2, 1–7 (1960)
5. Altomare, F.: Korovkin-type theorems and approximation by positive linear operators. Surv. Approx. Theory 5, 92–164 (2010)