``Service Discovery based on Behavioural Contracts''
in ``International School on Formal Methods for the Design of Computer, Communication and Software Systems: Web Services, SFM-09:WS, Revised Lectures'', Bertinoro, Italy, June 1-6, 2009, to appear in LNCS.
``Real Time and Stochastic Time''
in ``Formal Methods for the Design of Real-Time Systems, International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM-RT 2004, Bertinoro, Italy, September 13-18, 2004, Revised Lectures'', M. Bernardo and F. Corradini eds., LNCS 3185: 132-180, 2004
in ``Validation of Stochastic Systems - A Guide to Current Research'', Christel Baier et al eds., LNCS 2925: 44-88, 2004
``Two Formal Approaches for Approximating Noninterference Properties''
in ``Foundations of Security Analysis and Design II'', R. Focardi and R. Gorrieri eds., LNCS 2946: 1-43, 2004