Enabling Schema-Free XQuery with meaningful query focus.

Yunyao Li Cong Yu H. V. Jagadish Enabling Schema-Free XQuery with meaningful query focus. 2008 17 3 355-377 VLDB J. http://dx.doi.org/10.1007/s00778-006-0003-4 db/journals/vldb/vldb17.html#LiYJ08