1. K. Atanassov, Intuitionistic fuzzy sets, in: VIIth ITKR Session, Deposited in the Central Science and Technology Library of the Bulgarian Academy of Sciences, Sofia, Bulgaria, 1983, pp. 1684–1697.
2. Fuzzy models and algorithms for pattern recognition and image processing;Bezdek,1999
3. Entropy on intuitionistic fuzzy sets and on interval-valued fuzzy sets;Burillo;Fuzzy Sets and Systems,1996
4. Construction theorems for intuitionistic fuzzy sets;Burillo;Fuzzy Sets and Systems,1996
5. Automorphisms, negations and implication operators;Bustince;Fuzzy Sets and Systems,2003