1. G. Aloisio, M. Cafaro, I. Epicoco, S. Fiore, Analysis of the globus toolkit grid information service, GridLab, Technical Report GridLab-10-D.1-0001-GIS_Analysis, 2001.
2. AltaVista, 〈http://www.altavista.com/〉.
3. G. Banga, P. Druschel, Measuring the capacity of a web server, Proceedings of USENIX Symposium on Internet Technologies and Systems, 1997.
4. L. Barroso, J. Dean, U. Holzle, Web search for a planet: the Google cluster architecture, in: IEEE Micro, vol. 23, 2003.
5. The anatomy of a large-scale hypertextual web search engine;Brin;Comput. Networks,1998