1. The anatomy of a large-scale hypertextual Web search engine
2. , , & (2005). Toward alternative metrics of journal impact: A comparison of download and citation data (Preprint).
3. Retrieved February 9, 2006, from http://arXiv.org/cs/0503007
4. , & (1998). CiteSeer: An autonomous Web agent for automatic retrieval and identification of interesting publications. In K.P. Sycara & M. Wooldridge, Proceedings of the Second International Conference on Autonomous Agents.
5. Retrieved from http://citeseer.ist.psu.edu/bollacker98citeseer.html