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Martínez-Monés, A.,  Marcos-García, J.A.,  Garrachón, I.,  de la Fuente-Redondo, P.,  Dimitriadis, Y. Towards a data model for the evaluation of participatory aspects of collaborative learning Proceedings of the Conference on Computer Support for Collaborative Learning, Workshop on “Designing Computational Models of Collaborative Learning Interaction”, (CSCL'2002), 45-51, Boulder, Colorado, EEUU, January 2002.

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