M. M. de M. Campos, M. de O. e Mattos, R. da S. Macedo, A. A. M. de Medeiros, W. V. de Oliveira, and V. A. de Sousa Junior, “People effects on IoT indoor wireless channel characterization”, Rev. Principia, vol. 1, no. 53, pp. 141–149, Feb. 2021, doi: 10.18265/1517-0306a2020v1n53p141-149.