1. Electromagnetic Compatibility Handbook;Violette,1987
2. QoS classification for mobile networks: international roaming case study;Benslimane,2002
3. Opinion On Potential Health Effects of Exposure to Electromagnetic Fields (EMF) [Online];Scientific Committee on Emerging and Newly Identified Health Risks,2015
4. Architectural Electromagnetic Shielding Handbook: A Design and Specification Guide;Hemming,2000
5. Patents US7057472B2 “Bypass Filter, Multi-Band Antenna Switch Circuit, and Layered Module Composite Part and Communication Device Using Them” and US6975834B1 “Multi-Band Wireless Communication Device and Method”.