by de Almeida, Jorge V., Siqueira, Gláucio L., Mosso, Marbey M., Maia, Marco A.G.M., Souza, Jorge A.M.
Published in Microwave and optical technology letters (01.06.2017)

by Maia, M.A.G.M., Xavier, A.L.F.
Published in IEEE transactions on knowledge and data engineering (01.08.1996)