国外语义搜索引擎调查与分析
郭卫宁, 司莉
Investigation and Analysis on Semantic Search Engines Abroad
Guo Weining, Si Li
图书情报工作 . 2013, (23): 121 -129 .  DOI: 10.7536/j.issn.0252-3116.2013.23.020