Ali R. Celik, Muhammed B. Kurt, and Selcuk Helhel. “An Experimental Performance Investigation of an Ultra-Wideband Directional Antenna in the Microwave Imaging of Breast Cancer Tumor”. Applied Computational Electromagnetics Society Journal (ACES), vol. 34, no. 10, Oct. 2019, pp. 1549-60, https://journals.riverpublishers.com/index.php/ACES/article/view/8171.