Establishing the foundation of collaborative networks : IFIP TC 5 working group 5.5 Eighth IFIP Working Conference on virtual enterprises September 10-12, 2007, GuimarÃ£es, Portugal - Afsarmanesh, Hamideh; Analide, Cesar; Novais, Paulo; Camarinha-Matos, Luis M. (IFIP International Federation for Information Proc,, 2007)