Direito constitucional e teoria da constituição / J. J. Gomes Canotilho
Radiofrequency electromagnetic fileds : properties, quantities and units, biophysical interaction, and measurements: NCRP Report No. 67 (1981) / NCRP - National Council on Radiation Protection and Measurments
Mobile cellular telecommunications systems / William C. Y. Lee
Mobile cellular telecommunications : analog and digital systems / William C. Y. Lee