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. 2021 Dec 1;2021:3056428. doi: 10.1155/2021/3056428

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Copyright © 2021 Dong Wang and Jeng-Sheng Yang.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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The constitution of fuzzy systems.