Andrew Trotman, and Börkur Sigurbjörnsson.

In: Advances in XML Information Retrieval: Third International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2004, Dagstuhl Castle, Germany, December 6-8, 2004, Revised Selected Papers. Springer. Lecture Notes in Computer Science. Volume: 3493. Pages: 16-40. 2005.

Link: springerlink