Cha, HJ[Cha, Hyun Jin]; Kim, YS[Kim, Yong Se]; Park, SH[Park, Seon Hee]; Yoon, TB[Yoon, Tae Bok]; Jung, YM[Jung, Young Mo]; Lee, JH[Lee, Jee-Hyong]
ArticleIssue Date2006CitationINTELLIGENT TUTORING SYSTEMS, PROCEEDINGS, v.4053, pp.513 - 524PublisherSPRINGER-VERLAG BERLIN