El-Moghazi, M., J. Whalley, and J. Irvine. “The APT Frequency Arrangement in the 700 MHz: Reflections on the International Spectrum Management Regime”. Journal of Telecommunications and the Digital Economy, vol. 4, no. 3, Sept. 2016, pp. 8-20, doi:10.18080/jtde.v4n3.56.