D. Dubois, H. Prade, и A. Rico. Granular, Soft and Fuzzy Approaches for Intelligent Systems, том 344 из Studies in Fuzziness and Soft Computing, (2017)
D. Dubois, и H. Prade. Soft Computing Based Optimization and Decision Models, том 360 из Studies in Fuzziness and Soft Computing, стр. 223-229. Springer, (2017)