Y. Ding, H. Schmidtke, и M. Beigl. Proceedings of the 12th ACM international conference adjunct papers on Ubiquitous computing - Adjunct, стр. 401--402. New York, NY, USA, ACM, (2010)
D. Korn, R. Huang, D. Beavers, T. Bolioli, и M. Walker. Electronics and the Environment, 2004. Conference Record. 2004 IEEE International Symposium on, стр. 128 - 131. (мая 2004)
L. Cheung, T. Lai, R. Luk, O. Kwong, K. Sin, B. Tsou, H. Hom, и H. Kowloon. Proceedings of the first SIGHAN Workshop on Chinese Language Processing, 18, стр. 1--5. Morristown, NJ, Association for Computational Linguistics, Association for Computational Linguistics, (2002)
J. Gemmell, A. Shepitsen, M. Mobasher, и R. Burke. Proceedings of the 6th Workshop on Intelligent Techniques for Web Personalization and Recommender Systems, (июля 2008)
A. Hotho, R. Jaeschke, C. Schmitz, и G. Stumme. The Semantic Web: Research and Applications, том 4011 из Lecture Notes in Computer Science, стр. 411-426. Heidelberg, Springer, (июня 2006)