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Aarnio, H. & Enqvist, J. (2001). Dialogic Knowledge Construction as the Crucial Issue in Network-Based Learning in Vocational Education. In C. Montgomerie & J. Viteli (Eds.), Proceedings of ED-MEDIA 2001--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 1-6). Norfolk, VA USA: Association for the Advancement of Computing in Education (AACE).