1. Using stochastic processes for studying Bernstein-type operators;Adell;Rend. Circ. Mat. Palermo (2) Suppl.,1993
2. Preservation of moduli of continuity for Bernstein-type operators;Adell,1994
3. Bernstein-type operators diminish the ϕ-variation;Adell;Constr. Approx.,1996
4. Second modulus preservation inequalities for generalized Bernstein–Kantorovich operators;Adell,1997
5. Best constants in preservation inequalities concerning the first modulus and Lipschitz classes for Bernstein-type operators;Adell;J. Approx. Theory,1998