Comparison and Improvement of the Computational Efficiencies of Two FFT-Based Iterative Solution Methods for the Scalar Multiple-Scattering Equation. Commun. Comput. Phys. [Internet]. 2018 Mar. 24 [cited 2025 Dec. 5];5(1):108-25. Available from: https://www.global-sci.com/index.php/cicp/article/view/5596