Entropy and Subsethood for General Interval-Valued Intuitionistic Fuzzy Sets. - Xiaodong Liu; Suhua Zheng; Fenglan Xiong (FSKD (1), 2005)

The Comparative Study of Logical Operator Set and Its Corresponding General Fuzzy Rough Approximation Operator Set. - Suhua Zheng; Xiaodong Liu; Fenglan Xiong (FSKD (1), 2005)

The Relativity and Properties of Logical Operator, Fuzzy Relationsand General Fuzzy Rough Approximation. - Suhua Zheng; Xiaodong Liu; Fenglan Xiong (FSKD (1), 2008)