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Legros, A; Beuter, A (2006). "Individual subject sensitivity to extremely low frequency magnetic field". Neurotoxicology. 27 (4): 534–46. doi:10.1016/j.neuro.2006.02.007. PMID16620992.
Legros, A; Beuter, A (2006). "Individual subject sensitivity to extremely low frequency magnetic field". Neurotoxicology. 27 (4): 534–46. doi:10.1016/j.neuro.2006.02.007. PMID16620992.
"Electromagnetic Fields dan Public HealthL - Extremely Low Frequency (ELF)". Fact Sheet N205. November 1998. World Health Organization. Accessed 12 Feb 2010. "ELF fields are defined as those having frekuensi up to 300 Hz. ... the electric dan magnetic fields act independently of one another dan are measured separately."