1. Collected work;Bernstein,1952
2. Bernstein Polynomials;Lorentz,1953
3. On Linear Positive Operators in Approximation Theory;Schurer,1965
4. On Sikkema–Kantorovič polynomials of orderk;Cao;Approx. Theory Appl.,1989
5. Linear Operators and Approximation Theory;Korovkin,1960