Advances in Focused Retrieval 7th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2008, Dagstuhl Castle, Germany, December 15-18, 2008. Revised and Selected Papers - Geva, Shlomo; Kamps, Jaap; Trotman, Andrew (Springer Berlin Heidelberg : Imprint: Springer, 2009)