Multi-person Multi-attribute Decision Making Problems Based on Interval-Valued Intuitionistic Fuzzy Information. - Jin Han Park; Il Young Park; Young Chel Kwun; Jong Seo Park (FSKD (1), 2008)

Correlation coefficient of interval-valued intuitionistic fuzzy sets and its application to multiple attribute group decision making problems. - Dong Gun Park; Young Chel Kwun; Jin Han Park; Il Young Park (Math. Comput. Model., 2009)