References
- W. A. Dudeck, The number of subalgebras of finite BCC-algebras, Bull. Inst. Math. Acaddemia Sinica, 20(1992), 129-136.
- W. A. Dudeck, On proper BCC-algebras, Bull. Inst. Math. Acaddemia Sinica, 20(1992), 137-150.
- W. A. Dudeck and X. Zhang, On ideals and congruences in BCC-algebras, Czecho Math. J., 48(123) (1998), 21-29. https://doi.org/10.1023/A:1022407325810
- J. Hao, Ideal Theory of BCC-algebras, Sci. Math. Japo., 3 (1998), 373-381.
- K. Iseki, On BCI-algebras, Mathematics Seminar Notes, 8 (1980), 125-130.
- K. Iseki and S. Tanaka, An introduction to the theory of BCK-algebras, Math. Japon., 23 (1978), 27-23.
- Y. Komori, The class of BCC-algebras is not a variety, Math. Japon., 29 (1984), 391-394.
- A. Wronski, BCK-algebras do not form a variety, Math. Japon., 28 (1983), 211-213.