Trotter's approximation of semigroups and order of convergence in C2, alpha-spaces. - Michele Campiti; Cristian Tacelli (J. Approx. Theory, 2010)

On the interpolation of discontinuous functions. - Michele Campiti; Giusy Mazzone; Cristian Tacelli (J. Approx. Theory, 2012)

Korovkin-type approximation of set-valued and vector-valued functions. - Michele Campiti (Math. Found. Comput., 2022)

Onesided Korovkin approximation. - Michele Campiti (J. Approx. Theory, 2024)