面向XML关键字查询的高效RKN求解策略
陈子阳,王璿,汤显
Efficiently computing RKN for keyword queries on XML data
HENZi-yang C,ANGXuan W,ANGXian T
通信学报 . 2014, (7): 46 -55 .  DOI: 10.3969/j.issn.1000-436x.2014.07.006