Salazar-Flórez, Edgar Eduardo, Julian Eduardo Mora-Moreno, and Carlos Rodrigo Correa-Cely. “Design of Optimum Electromagnetic Absorbers in the Wireless Communications Range”. Ingenieria y Universidad 18, no. 1 (May 30, 2014): 17–42. Accessed September 28, 2022. https://revistas.javeriana.edu.co/index.php/iyu/article/view/2350.