Zhang, Qingde; Chen, Shuili; Meng, Guangwu The join in the lattice of fuzzy (left, right) ideals of a ring. (English) Zbl 0945.16003 J. Fuzzy Math. 7, No. 4, 949-955 (1999). MSC: 16D25 06B15 06C05 PDFBibTeX XMLCite \textit{Q. Zhang} et al., J. Fuzzy Math. 7, No. 4, 949--955 (1999; Zbl 0945.16003)
Liu, Jun; Xu, Yang On the representation of lattice implication algebras. (English) Zbl 0919.03049 J. Fuzzy Math. 7, No. 1, 251-258 (1999). MSC: 03G10 03B50 06B15 PDFBibTeX XMLCite \textit{J. Liu} and \textit{Y. Xu}, J. Fuzzy Math. 7, No. 1, 251--258 (1999; Zbl 0919.03049)