T. Prasad and M. H. M. Rashid, “Stability of versions of the Weyl-type theorems under tensor product”, Ukr. Mat. Zhurn., vol. 68, no. 4, pp. 542–550, Apr. 2016, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1859