Berendt, B.; Hotho, A. & Stumme, G. (2004), Usage Mining for and on the Semantic Web, in Hillol Kargupta; Anupam Joshi; Krishnamoorthy Sivakumar & Yelena Yesha, ed.,'Data Mining  Next Generation Challenges and Future Directions', AAAI Press, Boston, pp. 461-481.

Berendt, B.; Hotho, A. & Stumme, G. (2004), Usage Mining for and on the Semantic Web, in Hillol Kargupta; Anupam Joshi; Krishnamoorthy Sivakumar & Yelena Yesha, ed.,'Data Mining  Next Generation Challenges and Future Directions', AAAI Press, Boston, pp. 461-481.