References
- Christer Carlsson and Robert Fuller, On possibilistic mean value and variance of fuzzy numbers, Fuzzy Sets and Systems 122 (2001), 315-326. https://doi.org/10.1016/S0165-0114(00)00043-9
- D. Dubois and H. Prade, The mean value of a fuzzy number, Fuzzy Sets and Systems 24 (1987), 279-300. https://doi.org/10.1016/0165-0114(87)90028-5
- R. Goetschel and W. Voxman, Elementary fuzzy calculus, Fuzzy Sets and Systems 18 (1986), 31-43. https://doi.org/10.1016/0165-0114(86)90026-6
- L. A. Zadeh, Fuzzy Sets, Inform. and Control 8 (1965), 338-353. https://doi.org/10.1016/S0019-9958(65)90241-X