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[1]
T. M, O'Neil, in Nonneutral Plasma Physics, edited by C. W. Roberson and C. F. Driscoll American Institute of Physics, New York, 1988, p. 1,[2] J. H. Malmberg et al., ibid., p. 28,[3] 郁庆长，高能物理与核物理,14(1990), 973;14(1990),1067.
T. M, O'Neil, in Nonneutral Plasma Physics, edited by C. W. Roberson and C. F. Driscoll American Institute of Physics, New York, 1988, p. 1,[2] J. H. Malmberg et al., ibid., p. 28,[3] 郁庆长，高能物理与核物理,14(1990), 973;14(1990),1067.