5Xu Y, Ruan D, Qin K Y, Liu J. Lattice-valued logic: An alternative approach to treat fuzziness and incomparability [M]. Berlin & Springer, 2003.
6王国俊.非经典数理逻辑与近似推理[M].北京:科学出版社,2003.
7Xu Y,Qin K Y.On filters of lattice implication algebras[J].The Journal of Fuzzy Mathematics,1993,1 (2):251~260.
8Song S Z,Jun Y B.On n-fold positive implicative filters of lattice implication algebras[J].Soochow J.Math.,2004,30(2):225~235.
9Xu Y, Qin K Y. On filters of lattice implicationalgebra[J].The Journal of Fuzzy Mathernati,1993,(2).
10Xu Y, Qin K Y. Lattice H implication algebra and the class of lattice implication algebra[J]. Journal of Hebei Mining and Civil Engineering College, 1992, (2).