George H. L. Fletcher Dirk Van Gucht Yuqing Wu Marc Gyssens Sofia Brenes Jan Paredaens A methodology for coupling fragments of XPath with structural indexes for XML documents. 657-670 2009 34 Inf. Syst. 7 http://dx.doi.org/10.1016/j.is.2008.09.003 db/journals/is/is34.html#FletcherGWGBP09