Tiwary, A. K. ., and N. . Gupta. “Compact Wide Band Printed Filter With Improved Out-of-Band Performance”. Applied Computational Electromagnetics Society Journal (ACES), vol. 29, no. 03, Sept. 2021, pp. 224-30, https://journals.riverpublishers.com/index.php/ACES/article/view/11057.