N. Weber, T. Nelkner, K. Schoefegger, and S. Lindstaedt. Proceedings of the Third International Workshop on Mashup Personal Learning Environments (MUPPLE09), in conjunction with the 5th European Conference on Technology Enhanced Learning (EC-TEL2010), Barcelona, Spain, (September 2010)
K. Schoefegger, P. Seitlinger, and T. Ley. Proceedings of the 1st Workshop on Recommender Systems for Technology Enhanced Learning (RecSysTEL 2010), 1, page 2829 - 2838. (Sep 7, 2010)
E. Michlmayr, and S. Cayzer. Proceedings of the Workshop on Tagging and Metadata for Social Information Organization, 16th International World Wide Web Conference, (2007)
J. Tang, H. fung Leung, Q. Luo, D. Chen, and J. Gong. IJCAI'09: Proceedings of the 21st international jont conference on Artifical intelligence, page 2089--2094. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2009)