1 |
C. L. Chang, Fuzzy topological spaces, J. Math. Anal. Appl. 24 (1968), 182-190.
DOI
|
2 |
Y. Huang, BCI-Algebras, Science Press, Beijing, 2006.
|
3 |
K. Iseki, On BCI-algebras, Math. Math. Sem. Notes Kobe Univ. 8 (1980), 125-130.
|
4 |
Y. B. Jun and J. Meng, Fuzzy p-ideals in BCI-algebras, Math. Japon. 40 (1994), no. 2, 271-282.
|
5 |
Y. B. Jun, E. H. Roh, and K. J. Lee, Fuzzy subalgebras and ideals of BCK/BCI-algebras with degree in the interval (0, 1], Fuzzy Sets and Systems, submitted.
|
6 |
A. Rosenfeld, Fuzzy groups, J. Math. Anal. Appl. 35 (1971), 512-517.
DOI
|
7 |
O. G. Xi, Fuzzy BCK-algebras, Math. Japon. 36 (1991), no. 5, 935-942.
|
8 |
L. A. Zadeh, Fuzzy sets, Inform. and Control 8 (1965), 338-353.
DOI
|
9 |
X. Zhang, J. Hao, and S. A. Bhatti, On p-ideals of a BCI-algebra, Punjab Univ. J. Math. 27 (1994), 121-128.
|