1. T. J. Woodruff, Ph.D. thesis, Vanderbilt University (1973).
2. G. Kenny, Ph.D. thesis, Vanderbilt University (1972).
3. W. W. Yarborough, Ph.D. thesis, Vanderbilt University (1974).
4. M. N. Rosenbluth inMagnetohydrodynamics, A Symposium, edited by R. K. M. Landshoff (Stanford U.P., Stanford, California, 1957), p. 57.
5. G. C. Vlases, Ph.D. thesis, California Institute of Technology (1963);