Velez, J.C., W.S. Percybrooks, and Y.N. Antonov-Antipov (R.I.P.). 2012. “Unified Processing Structure for Communication and Navigation Signals in Modems for Lightweight Satellite Stations”. Journal of Applied Research and Technology 10 (5). https://doi.org/10.22201/icat.16656423.2012.10.5.365.