Pedraza Arpasi, Jorge, and Reginaldo Palazzo Jr. “Codificadores Convolucionais Abelianos<br /&gt;DOI: 10.14209/Jcis.1998.1”. Journal of Communication and Information Systems 13, no. 2 (1). Accessed May 31, 2020. https://jcis.sbrt.org.br/jcis/article/view/192.