참고문헌
- M. B. Gorzalczany, "A method of inference in approximate reasoning based on interval-valued fuzzy sets", Fuzzy Sets and Systems, vol. 21, pp. 1-17, 1987 https://doi.org/10.1016/0165-0114(87)90148-5
- P. K. Maji, R. Biswas and A. R. Roy, "Fuzzy soft sets", J. Fuzzy Math., vol. 9, pp. 589-602, 2001
- P. K. Maji, R. Biswas, "On soft set theory", Comput. Math. Appl., vol. 45, pp. 555-562, 2003 https://doi.org/10.1016/S0898-1221(03)00016-6
- M. J. Son, "Interval-valued Fuzzy soft sets", J. Fuzzy Logic and Intelligent Sys., vol. 17(4), pp. 557-562, 2007 https://doi.org/10.5391/JKIIS.2007.17.4.557
- D. Molodtsov, "Soft set theory-First results", Computers Math. Appl., vol. 37, pp. 19-31, 1999