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2. D. J. Nagel and W. L. Baun, “Bonding Effects in X-Ray Spectra,” in L. V. Azaroff, Editor, X-Ray Spectroscopy, p. 445–532, McGraw Hill (1974).
3. D. J. Nagel, “Ion Excitation of X-Rays,” in McGraw-Hill Yearbook of Science and Technology, p. 432–435, McGraw Hill (1974) and references therein.
4. D. J. Nagel, C. M. Dozier, P. G. Burkhalter, G. A. Doschek and T. N. Lee, “Comparison of High-Temperature, High-Density Plasma X-Ray Spectroscopic Sources, “ Space Science Reviews, to be published.
5. D. J. Nagel, “Approaches to High Photon Energy Lasers,” Physica Fennica, 9(S1), 381–388 (1974).