Advances in XML Information Retrieval and Evaluation 4th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2005, Dagstuhl Castle, Germany, November 28-30, 2005. Revised Selected Papers - Fuhr, Norbert; Lalmas, Mounia; Malik, Saadia; Kazai, Gabriella (Springer Berlin Heidelberg : Imprint: Springer, 2006)