1. Trajmar, S., and Register, D. F., in Electron Molecule Collisions, Takayanagi, K., and Shimamura, I., eds., Plenum, New York, 1984, pp. 427–493.
2. Trajmar, S., Williams, W., and Srivastava, S. K., J. Phys. B: Atom. Mol. Phys.
10, 3323 (1977).
3. Trajmar, S., and Chutjian, A. (unpublished).
4. Newell, W. R., Optical Oscillator Strengths by Electron Impact Spectroscopy, in Progress in Atomic Spectroscopy, Hal, W., and Kleinpoppen, H., eds., Plenum, New York, 1979.
5. Cartwright, D. C., Trajmar, S., Williams, W., and Huestis, D. L., Phys. Rev. L.
11, 329 (1971)