Ramesh Bharadwaj Supratik Mukhopadhyay Nilay Padh Service Composition in a Secure Agent-Based Architecture. 787-788 2005 conf/eee/2005 EEE http://doi.ieeecomputersociety.org/10.1109/EEE.2005.118 db/conf/eee/eee2005.html#BharadwajMP05