1. HIYUTORIKAI;Yamanashi,1998
2. Psychology of metaphor;Haga,1990
3. An Automatic Relevance Estimation of Property Values and Its Feedback Based on World Wide Web for Metaphor Recognition;Masui;IEICE TRANSAXTIONS on Information and Systems,2006
4. “The Metaphorical Judgment Model for “Noun B like Noun A” Expressions”;Tazoe;Journal of natural language processing,2003
5. “Survey on Studies of Understanding and Producing of Metaphor”;Okamura,2014