Sarkar, T. K. ., Chung, Y.- seek . and Palma, M. S. . (2022) “SOLUTION TO THE GENERAL HELMHOLTZ EQUATION STARTING FROM LAPLACE EQUATION”, Applied Computational Electromagnetics Society Journal (ACES), 17(3), pp. 187–197. Available at: https://journals.riverpublishers.com/index.php/ACES/article/view/16961 (Accessed: 13 May 2026).