Fei You Qingxi Hu Yuan Yao Gaochun Xu Minglun Fang Study on Web Service Matching and Composition Based on Ontology. 542-546 2009 CSIE (4) http://doi.ieeecomputersociety.org/10.1109/CSIE.2009.673 conf/csie/2009 db/conf/csie/csie2009-4.html#YouHYXF09a