6George A M,Richard B,Christiane F,et al.Introduction to WordNet:An On-Line Lexical Database[M].Specification of WordNet,Cognitive Science Laboratory,Princeton University,1993.
7唐成.基于概念的搜索引擎.科技信息：学术版,2007,(9):174-175.
8Wiederhold G.Mediators in the Architecture of Future Information Systems[J].Computer,1992,25:38-49.
9Lawrence S,Giles C L.Searching the World Wide Web[J].Science,1998,280:98-100.
10Hall B H,Helmers C. Innovation and Diffusion of Clean/Green Technology: Can Patent Commons Help [Z]. WP Berkeley Center for Law and Technology, California, 2011.
