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Trích dẫn kiểu Chicago (xuất bản lần thứ 7)International Workshop on Fuzzy Logic and Applications Trani, Italy, SpringerLink (Online service), Anna Maria Fanelli, Witold Pedrycz, và Alfredo Petrosino. Fuzzy Logic and Applications: 9th International Workshop, WILF 2011, Trani, Italy, August 29-31,2011. Proceedings. Berlin, Heidelberg: Springer, 2011.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)International Workshop on Fuzzy Logic and Applications Trani, Italy, et al. Fuzzy Logic and Applications: 9th International Workshop, WILF 2011, Trani, Italy, August 29-31,2011. Proceedings. Springer, 2011.