1. C. K. Chu and R. A. Gross, inAdvances in Plasma Physics, edited by A. Simon and W. B. Thompson (Wiley, New York, 1969), Vol. 2, p. 139.
2. R. A. Gross, inRecent Developments in Shock Tube Research, edited by D. Bershader and W. Griffith (Stanford U.P., Stanford, 1973), p. 72.
3. Production and Investigation of Very Strong Ionizing Shock Waves
4. Experimental Study of Strong Transverse Ionizing Shock Waves
5. D. H. McNeill, Ph.D. thesis, Columbia University (1973).