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De Hoyos, M.L. & Resta, P. (2004). Meaningful Interactions in Vital Collaborative Learning Teamwork Experiences. In L. Cantoni & C. McLoughlin (Eds.), Proceedings of ED-MEDIA 2004--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 2547-2552). Lugano, Switzerland: Association for the Advancement of Computing in Education (AACE).