1. Arasu, A., Cho, J., Garcia-Molina, H., Paepcke, A., Raghavan, S.: Searching the Web. j-TOIT 1(1), 2–43 (2001),
http://www.acm.org/pubs/contents/journals/toit
2. Lecture Notes in Computer Science;M. Braschler,2003
3. Costa, M., Silva, M.J.: Sidra: a Flexible Distributed Indexing and Ranking Architecture for Web Search. In: Proceedings of the VIII Conference on Software Engineering and Databases JISBD 2003, Alicante, Spain (November 2003)
4. Couto, F., Martins, B., Silva, M.J., Coutinho, P.: Classifying Biomedical Articles using Web Resources: application to KDD Cup 2002. DI/FCUL TR 03–24, Department of Informatics, University of Lisbon (July 2003)
5. Couto, F., Silva, M., Coutinho, P.: Finding Genomic Ontology Terms in Text using Information Content. In: Critical Assessment of Information Extraction systems in Biology (BioCreative), Granada, Spain (March 2004); BMC Bioinformatics Journal (accepted for publication)