Shohei Yokoyama Manabu Ohta Kaoru Katayama Hiroshi Ishikawa An Access Control Method Based on the Prefix Labeling Scheme for XML Repositories. 105-113 2005 conf/adc/2005 ADC http://crpit.com/confpapers/CRPITV39Yokoyama.pdf db/conf/adc/adc2005.html#YokoyamaOKI05