Kehrer, Daniel, Gernot Steinlesberger, Klaus Aufingcr, Harald Tischer, Hans-Dieter Wohlmuth, Verner Simburger, and Arpad L. Scholtz. 2015. “Prospects of Microstrip Waveguides in Aluminum and Copper Metallization for High-Frequency Applications<br >10.14209 Jcis.2003.1”. Journal of Communication and Information Systems 18 (1). https://jcis.sbrt.org.br/jcis/article/view/320.