“Comparison and Improvement of the Computational Efficiencies of Two FFT-Based Iterative Solution Methods for the Scalar Multiple-Scattering Equation”. Communications in Computational Physics 5, no. 1 (March 24, 2018): 108–125. Accessed December 5, 2025. https://www.global-sci.com/index.php/cicp/article/view/5596.