PERISIC, D. M.; BOJOVIC, M. Application of Time Recursive Processing for the Development of a Time/Phase Shifter. Engineering, Technology & Applied Science Research, Greece, v. 7, n. 3, p. 1582–1587, 2017. DOI: 10.48084/etasr.1179. Disponível em: https://etasr.com/index.php/ETASR/article/view/1179. Acesso em: 20 sep. 2021.