H. Yu, D. Liu, S. Dietze, and J. Domingue. Proceedings of the 7th International Conference on Next Generation Web Services Practices (NWeSP 2011), Salamanca, Spain, 2011, (2011)
S. Dietze. Proceedings of 2nd Workshop on Recommender Systems for Technology Enhanced Learning (RecSysTEL2012), at 7th European Conference on Technology-Enhanced Learning (EC-TEL 2012), CEUR-WS Vol. 896, Saarbrücken (2012), (2012)
D. Taibi, and S. Dietze. CEUR WS Proceedings Vol. 974, Proceedings of the LAK Data Challenge, held at LAK2013 – The Third Conference on Learning Analytics and Knowledge, (April 2013)