“Asymptotic Stability of an Eikonal Transformation Based ADI Method for the Paraxial Helmholtz Equation at High Wave Numbers”. Communications in Computational Physics 12, no. 4 (December 1, 2012): 1275–1292. Accessed December 5, 2025. https://www.global-sci.com/index.php/cicp/article/view/6004.