J. F. Medina Lee, A. López-Parrado, A. Vera Tasamá, and D. de J. Bohórquez Palacio, “Testbed for Sub-Nyquist Wideband Spectrum Monitoring”, rev.ing.univ.Medellin, vol. 19, no. 37, pp. 35–58, Oct. 2019, doi: 10.22395/rium.v19n37a2.