Rashid, M. H. M. “Generalized Weyl’s Theorem and Tensor Product”. Ukrains’kyi Matematychnyi Zhurnal 64, no. 9 (September 25, 2012): 1289-1296. Accessed April 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2659.