References

Roe C., 1999. Coordinate Geometry (COG).

Roe C., 2003. Computers for Learning: An Empirical Modelling perspective.

Göker A. and He D., 2000. Analysing Web Search Logs to Determine Session Boundaries for User-Oriented Learning.

Balabanovic M., Shoham Y. and Yun Y., 1995. Characterizing Browsing Strategies in the World-Wide Web. http://empublic.dcs.warwick.ac.uk/projects/cogRoe1999/
http://www.dcs.warwick.ac.uk/research/modelling/papers/theses/croePhD/
http://www.umiacs.umd.edu/~daqingd/papers/ah2000.pdf
http://www.igd.fhg.de/archive/1995_www95/papers/80/userpatterns/UserPatterns.Paper4.formatted.html

40 paper/60 model