1. ELECTRA No.164, SF6 and the Global Atmosphere, February 1996
2. ELECTRA No.32, Paschen Curves for Nitrogen, Air and Sulfur Hexafluoride, January 1974
3. JNIST Technical Note 1425, Gases for Electrical Insulation and Arc Interruption: Possible Present and Future Alternatives to Pure SF6, L.G.Christophorou, J.K. Olthoff, and D.S. Green, November 1997
4. L.G. Christophorou et al, IEEE Trans. EI, Vol.l3,No.5, 20–24 1997-9/10
5. ELECTRA No.173, SF6 Recycling Guide, Re-use of SF6 Gas in Electrical Power Equipment and Final Disposal, August 1997