SommaneeW. “Embedding Theorems and Maximal Subsemigroups of Some Linear Transformation Semigroups With Restricted Range”. Ukrains’kyi Matematychnyi Zhurnal 73, no. 12 (December 17, 2021): 1714 - 1722. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1289.