V. D. Derech, “Classification of finite commutative semigroups for which the inverse monoid of local automorphisms is permutable”, Ukr. Mat. Zhurn., vol. 64, no. 2, pp. 176–184, Feb. 2012, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2564