Mustafaev, G. S. “On the Discreteness of the Structural Space of Weakly Completely Continuous Banach Algebras”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 56, no. 3, Mar. 2004, pp. 411-8, https://umj.imath.kiev.ua/index.php/umj/article/view/3763.