Takeharu Eda Yasushi Sakurai Toshiyuki Amagasa Masatoshi Yoshikawa Shunsuke Uemura Takashi Honishi Dynamic Range Labeling for XML Trees. 230-239 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3268&spage=230 2004 conf/edbtw/2004 EDBT Workshops db/conf/edbtw/edbtw2004.html#EdaSAYUH04