“The Spectrum and the Numerical Range of the Product of Finite Numbers of Automorphic Composition Operators on Hardy Space 2”, Iraqi Journal of Science, vol. 56, no. 4A, pp. 2966–2971, Feb. 2023, Accessed: Mar. 31, 2025. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9534