A. Chen and J. L. Shen, “A note on property (gaR) and perturbations”, Ukr. Mat. Zhurn., vol. 69, no. 7, pp. 974–983, Jul. 2017, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1750