Flavio Corradini Francesco De Angelis Andrea Polini Alberto Polzonetti Improving Trust in Composite eServices Via Run-Time Participants Testing. 279-290 2008 EGOV http://dx.doi.org/10.1007/978-3-540-85204-9_24 conf/egov/2008 db/conf/egov/egov2008.html#CorradiniAPP08