Peter Baumgartner Ulrich Furbach Margret Groß-Hardt Thomas Kleemann Optimizing the Evaluation of XPath Using Description Logics. 1-15 http://dx.doi.org/10.1007/11415763_1 2004 conf/wlp/2004 INAP/WLP db/conf/wlp/wlp2004.html#BaumgartnerFGK04