1. Alonso, O., Gertz, M., Baeza-Yates, R.: On the Value of Temporal Information in Information Retrieval. ACM SIGIR Forum 41(2), 35–41 (2007)
2. Anderson, C.: The Long Tail: Why the Future of Business Is Selling Less of More. Hyperion (2006)
3. Atserias, J., Zaragoza, H., Ciaramita, M., Attardi, G.: Semantically Annotated Snapshot of the English Wikipedia. In: Proceedings of the 6th International Conference on Language Resources and Evaluation, LREC (2008)
4. Lecture Notes in Computer Science;R. Baeza-Yates,2005
5. Lecture Notes in Computer Science;R. Baeza-Yates,2006