Issue No. 06 - June (2009 vol. 21)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TKDE.2009.104
R. W. Lau, Q. Li, J. Liu and D. McLeod, "Guest Editors' Introduction: Knowledge and Data Engineering for E-Learning," in IEEE Transactions on Knowledge & Data Engineering, vol. 21, no. , pp. 756-758, 2009.