Kenji Hashimoto Fumikazu Takasuka Kimihide Sakano Yasunori Ishihara Toru Fujiwara Verification of the Security Against Inference Attacks on XML Databases. 359-370 2008 APWeb http://dx.doi.org/10.1007/978-3-540-78849-2_37 conf/apweb/2008 db/conf/apweb/apweb2008.html#HashimotoTSIF08