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Molinari, A. & Colazzo, L. (2004). The Management of Chrono-Referenced Events in Virtual Communities. In L. Cantoni & C. McLoughlin (Eds.), Proceedings of ED-MEDIA 2004--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 117-124). Lugano, Switzerland: Association for the Advancement of Computing in Education (AACE).