Jaeyoung Yang Tae-Hyung Kim Joongmin Choi An Interface Agent for Wrapper-Based Information Extraction. 291-302 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3371&spage=291 2004 conf/prima/2004 PRIMA db/conf/prima/prima2004.html#YangKC04