TY - JOUR AU - Lu Xiao TI - Exploring the Use of Contextual Modules for Understanding and Supporting Collaborative Learning Activities: An Empirical Study JO - Computer Science and Information Systems PY - 2012 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CSIS_2012_9_2_a21/ ID - CSIS_2012_9_2_a21 ER -