Swati S. Patil, Komal Todkar, Namrata A. Gandhi, and Nilesh M. Verulkar. “A Survey on Efficient Life Detection System Using Microwave Signal”. Journal of Electronic Design Engineering, vol. 2, no. 3, Sept. 2016, pp. 1-8, http://matjournals.co.in/index.php/JOEDE/article/view/6793.