Sowmya Ramachandran Emilio Remolina Daniel Fu FlexiTrainer: A Visual Authoring Framework for Case-Based Intelligent Tutoring Systems. 848-850 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3220&spage=848 2004 conf/its/2004 Intelligent Tutoring Systems db/conf/its/its2004.html#RamachandranRF04