1. F. Colombo, I. Sabadini, The Cauchy formula with s-monogenic kernel and a functional calculus for noncommuting operators, preprint, 2008.
2. F. Colombo, I. Sabadini, On some properties of the quaternionic functional calculus, preprint, 2008.
3. F. Colombo, G. Gentili, I. Sabadini, A Cauchy kernel for slice regular functions, preprint, 2008.
4. F. Colombo, G. Gentili, I. Sabadini, D.C. Struppa, An overview on functional calculus in different settings, this volume.
5. F. Colombo, I. Sabadini, D.C. Struppa, Slice monogenic functions, to appear in Israel Journal of Mathematics.