Jiwei Zhong Haiping Zhu Jianming Li Yong Yu Conceptual Graph Matching for Semantic Search. 92-196 2002 conf/iccs/2002 ICCS http://link.springer.de/link/service/series/0558/bibs/2393/23930092.htm db/conf/iccs/iccs2002.html#ZhongZLY02