A relational model for XML structural joins and their size estimations.

Cheng Luo Zhewei Jiang Wen-Chi Hou Feng Yan Qiang Zhu A relational model for XML structural joins and their size estimations. 97-127 2008 16 Knowl. Inf. Syst. 1 http://dx.doi.org/10.1007/s10115-007-0089-z db/journals/kais/kais16.html#LuoJHYZ08