1. ICNIRP guidelines for limiting exposure to time‐varying electric, magnetic and electromagnetic fields (up to 300 GHz);ICNIRP (International Commission on Non Ionizing Radiation Protection);Health Phys,1998
2. IEEE Standard C95.1‐2005 IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields 3 kHz to 300 GHz 2005.
3. IEEE Standard C95.1‐1999 IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields 3 kHz to 300 GHz 1999.