1. [1] M. Campiti and C. Tacelli, Rate of convergence in Trotter’s approximation theorem, Constr. Approx. 28 (2008), no. 3, 333–341.
2. [2] M. Campiti and C. Tacelli, Erratum to: Rate of convergence in Trotter’s approximation theorem, Constr. Approx. 31 (2010), no. 3, 459–462.
3. [3] M. Campiti and C. Tacelli, Trotter’s approximation of semigroups and order of convergence in - spaces, J. Approx. Theory 162 (2010), no. 2, 2303–2316.
4. [4] K.-J. Engel and R. Nagel, One-Parameter Semigroups for Linear Evolution Equations, Graduate Texts in Mathematics 194, Springer-Verlag, New York, 2000.
5. [5] W. Feller, An Introduction to Probability Theory and Its Applications, Vol. 2, Second edition, John Wiley and Sons, Inc., New York-London-Sydney, 1971.