The Life Insurance Model under Fuzzy Rates of Interest. - Jing-gui Gao; Xiao-yan Zhao; Ming-qing Zhao (ICFIE, 2009)

An Extension of Rough Fuzzy Set on the Fuzzy Approximation Space. - Xiao-yan Zhao; Jian-guo Xu; Jing-gui Gao (ICFIE, 2009)

Risk model in fuzzy environments. - Xiao-yan Zhao; Jing-gui Gao; Ming-qing Zhao (FSKD, 2010)