Daniela Berardi Fahima Cheikh Giuseppe De Giacomo Fabio Patrizi Automatic Service Composition via Simulation. 429-451 2008 19 Int. J. Found. Comput. Sci. 2 http://dx.doi.org/10.1142/S0129054108005759 db/journals/ijfcs/ijfcs19.html#BerardiCGP08