TY - JOUR AU - Riichiro Mizoguchi TI - The Role of Ontological Engineering for AIED Research JO - Computer Science and Information Systems PY - 2005 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CSIS_2005_2_1_a2/ ID - CSIS_2005_2_1_a2 ER -