F. [. Hassine, A. M. Karray, M. Alimi, . Selmils-]-k, O. Loquin et al., Approximation properties of fuzzy systems for smooth functions and their first-order derivative, Per06] I. Perfilieva. Fuzzy transforms: Theory and applications. Fuzzy sets and systems, pp.160-168443, 2002.
DOI : 10.1109/TSMCA.2003.811772

T. A. Runkler, Fuzzy histograms and fuzzy chi-squared tests for independence, 2004 IEEE International Conference on Fuzzy Systems (IEEE Cat. No.04CH37542), pp.1361-1366, 2002.
DOI : 10.1109/FUZZY.2004.1375368

O. Strauss, F. Comby, M. J. Aldon, and A. B. Tsybakov, Rough histograms for robust statistics IntroductionàIntroductionà l'estimation non-paramétrique, 15th International Conference on Pattern Recognition, 2000.

J. Van-den and . Berg, Probabilistic and statistical fuzzy set foundations of competitive exception learning, 10th IEEE International Conference on Fuzzy Systems. (Cat. No.01CH37297), pp.1035-1038, 2001.
DOI : 10.1109/FUZZ.2001.1009140

L. X. Wang, Universal approximation by hierarchical fuzzy systems. Fuzzy sets and systems, pp.223-230, 1998.