1. Note on a Korovkin - type theorem;Finta;Math Anal Appl,2014
2. Il inskii Convergence of generalized Bernstein polynomials;Ostrovska;Theory,2002
3. A generalization of the Bernstein polynomials;Oruç;Proc Edinb Math Soc,1999
4. König and Zeller operators based on the q - integers;Trif;Rev Anal Numér Théor Approx,2000
5. Korovkin - type theorem and application;Wang;Approx Theory,2005