M. Shadab, “$\ell^{1}$-Munn ideal amenability of certain semigroup algebras”, MFAT, vol. 19, no. 2, pp. 187–190, Jun. 2013, Accessed: Mar. 30, 2026. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/545