Manju Manuel, Remya Krishnan, and Elizabeth Elias. “Design of Multiplierless 2-D Sharp Wideband Filters Using FRM and GSA”. Global Journals of Research in Engineering 12, no. F5 (March 15, 2012): 41–49. Accessed May 5, 2024. https://engineeringresearch.org/index.php/GJRE/article/view/617.