Dimitri Theodoratos Xiaoying Wu An Original Semantics to Keyword Queries for XML Using Structural Patterns. 727-739 2007 conf/dasfaa/2007 DASFAA http://dx.doi.org/10.1007/978-3-540-71703-4_61 db/conf/dasfaa/dasfaa2007.html#TheodoratosW07