References
- J. C. Abbott, Sets, Lattices and Boolean Algebras, Allyn and Bacon, Boston, 1969.
- K. H. Kim, A note on f-derivations of subtraction algebras, Scientiae Mathematicae Japonicae, 72 (2010), no. 2, 127-132.
- S. D. Lee and K. H. Kim, A note on multipliers of subtraction algebras, The Hacettepe Journal of Mathematics and Statistics, 42 (2013), no. 2, 165-171.
- B. M. Schein, Difference Semigroups, Communications in Algebra, 20 (1992), 2153-2169. https://doi.org/10.1080/00927879208824453
- Y. H. Yon and K. H. Kim, On derivations of subtraction algebras, The Hacettepe Journal of Mathematics and statistics, 41 (2012), no. 2, 157-168
- B. Zelinka, Subtraction Semigroups, Mathematica Bohemica, 120 (1995), 445- 447.