Lina Markauskaite Louise M. Sutherland Peter Reimann Interaction and Cognitive Engagement in the Community of Practice: The Contradiction of Terms?. 623-625 2006 conf/icalt/2006 ICALT http://doi.ieeecomputersociety.org/10.1109/ICALT.2006.200 db/conf/icalt/icalt2006.html#MarkauskaiteSR06