1. Asymptotic approximation with Kantorovich polynomial;Abel;Approx. Theory Appl.,1998
2. Asymptotic expansion of the Jakimovski–Leviatan operators and their derivatives;Abel,2002
3. Koronkin-type approximation theory and its applications;Altomare,1994
4. A theorem converse to a theorem of Voronovskaja type;Amel’kovic˘;Teor. Funkc˘iı˘, Funkc˘ional. Anal. i Priloz˘en,1966
5. A note on approximation by Bernstein polynomials;Bajsanski;Bull. Am. Math. Soc.,1964