Jigui Sun Xi Bai Zehai Li Haiyan Che Huawen Liu Towards a Wrapper-Driven Ontology-Based Framework for Knowledge Extraction. 230-242 2007 conf/ksem/2007 KSEM http://dx.doi.org/10.1007/978-3-540-76719-0_25 db/conf/ksem/ksem2007.html#SunBLCL07