1. Regression towards mediocrity in hereditary stature;Galton;Journal of the Anthropological Institute,1885
2. On the theory of correlation;Yule;Journal of the Royal Statistical Society,1897
3. Fuzzy linear regression model;Tanaka;IEEE Transactions on Systems, Man and Cybernetics,1982
4. Why is there a need for uncertainty theory;Liu;Journal of Uncertain Systems,2012
5. Liu B. , Uncertainty Theory, 2nd edn, Springer-Verlag, Berlin, (2007).