Broder, A., Kumar, R., Maghoul, F., Raghavan, P., Rajagopalan, S., Stata, R., Tomkins, A. & Wiener, J.
(2000).
Graph structure in the web. Computer Networks,
33, 309--320.
Chakrabarti, S., Dom, B., Gibson, D., Kleinberg, J., Raghavan, P. & Rajagopalan, S.
(1998).
Automatic resource compilation by analyzing hyperlink structure and associated text.
Proceedings of the 7th World-wide web conference (WWW7),30(1-7) (p./pp. 65--74),
.