“Comparison and Improvement of the Computational Efficiencies of Two FFT-Based Iterative Solution Methods for the Scalar Multiple-Scattering Equation”, Commun. Comput. Phys., vol. 5, no. 1, pp. 108–125, Mar. 2018, Accessed: Dec. 05, 2025. [Online]. Available: https://www.global-sci.com/index.php/cicp/article/view/5596