1. R. A. Hartunian , G. E. Stewart , S. D. Fergason , T. J. Curtiss , and R. W. Seibold , Aerospace Report No. ATR-2007(5309)-1 (The Aerospace Corporation, El Segundo, 2007), pp. 1–103.
2. See National Technical Information Service Document No. AD718428. ( J. P. Rybak , Scientific Report No. 1, 1970). Copies may be ordered from the National Technical Information Service, Springfield, VA 22151.
3. See National Aeronautics and Space Administration Document No. E-17194. ( E. D. Gillman , J. E. Foster , and I. M. Blankson , Technical Memorandum Report No. NASA/TM-2010-216220, 2010). Copies may be ordered from John H. Glenn Research Center at Lewis Field Cleveland, Ohio 44135–3191.
4. N. D. Akey , inThe Entry Plasma Sheath and Its Effects on Space Vehicle Electromagnetic Systems( NASA Langley Research Center, 1970), Vol. I, pp. 25.