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Issue Date	Title / Author(s) / Citation	File	Altmetrics
2009-12	Generation of new service concepts: A morphology analysis and genetic algorithm approach Lee, Changyong; Song, Bomi; Park, Yongtae EXPERT SYSTEMS WITH APPLICATIONS; Vol.36 10; 12454-12460	DOI
2012-02	Evaluation of new service concepts using rough set theory and group analytic hierarchy process Lee, Changyong; Lee, Hakyeon; Seol, Hyeonju; Park, Yongtae Expert Systems with Applications, Vol.39 No.3, pp.3404-3412	DOI