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2. BBC, 2012. http://www.bbc.co.uk, (accessed 14.08.12.).
3. Basic Standard for the In-situ Measurement of Electromagnetic Field Strength Related to Human Exposure in the Vicinity of Base Stations;CENELEC European Committee for Electrotechnical Standardisation,2008
4. European Council Recommendation 1999/519/EC ECR, 1999. Limitation of Exposure of the General Public to Electromagnetic Fields (0 Hz to 300 GHz).
5. Federal Communications Commission (FCC), 2001. Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields. Washington, DC, Tech. Rep. Suppl. C to OET Bulletin 65.