@unpublished{geneves-note03,
   AUTHOR = {Pierre Genev\`es and Kristoffer Rose},
   TITLE = {Eliminating Context-State from {XPath}},
   NOTE = {Research Note (unpublished manuscript)},
   YEAR = {2003},
   MONTH = {October},
   URL = {http://wam.inrialpes.fr/publications/2003/xpath-cs-removal.pdf}
 }