Denne, B. and Hinnov, E., Phys. Scr. 35, 11 (1987).
Seely, J. F., Ekberg, J. O., Brown, C. M., Feldman, U., Behring, W. E., Reader, J. and Richardson, M. C., Phys. Rev. Lett. 57, 2924(1986).
Hinnov, E., Beiersdorfer, P., Bell, R., Steven, J., Suckewer, S., Von Goeler, S., Wouters, A., Dietrich, D., Gerassimenko, M. and Silver, E„ Phys. Rev. 35, 4876 (1987).
Wyart, J.-F., Mandelbaum, P., Klapisch, M., Schwöb, J.-L. and Schweitzer, N., Physica Scripta 36, 224 (1987).
Shorer, P. and Dalgarno, A., Phys. Rev. A16, 1502 (1977).
Shorer, P., Phys. Rev. A18, 1060 (1978).
Biémont, E. and Godefroid, M., Physica Scripta 22, 231 (1980).
Froese Fischer, C. and Hansen, J. E., Phys. Rev. A17, 1956 (1978).
Froese Fischer, C. and Hansen, J. E., Phys. Rev. A19, 1819 (1979).
Victor, G. A. and Taylor, W. R., At. Data Nucl. Data Tables 28, 107(1983).
Curtis, L. J., J. Opt. Soc. Am. B2, 407 (1985).
Churilov, S. S., Ryabtsev, A. N. and Wyart, J.-F., Phys. Scr. (in press).
Wyart, J.-F. and Artru, M.-C, Phys. Lett. 121A, 419 (1987).
Litzén, L and Reader, J., Phys. Rev. A36, 5159 (1987).
Cowan, R. D., The Theory of Atomic Structure and Spectra, University of California Press (1981).
Fawcett, B. C., Rutherford Appleton Laboratory, Report RL-83-030 (March 1983 — revised April 1984).
Acquista, N. and Reader, J., J. Opt. Soc. Am. Bl, 649 (1984).
Moore, C. E., Atomic Energy Levels, NBS Circular 467 (1952).
Isberg, B. and Litzén, U., Physica Scripta 31, 533 (1985).
Breton, C., De Michelis, G., Hecq, W., Mattioli, M., Ramette, J., Saoutic, B., Bauche-Arnoult, C., Bauche, J. and Wyart, J.-F., Physica Scripta 37, 33 (1988).
Cowan, R. D., J. de Phys. 31, C4-191 (1970).
Grant, I. P., McKenzie, B. J., Norrington, P. H., Mayers, D. F. and Pyper, N. C., Comput. Phys. Comm. 21, 207 (1980).
McKenzie, B. J., Grant, I. P. and Norrington, P. H., Comput. Phys. Comm. 21, 233 (1980).
Cowan, R. D., Fawcett, B. C., Grant, I. P. and Rose, S. J., Rutherford Appleton Laboratory, RAL-85-098 (1985).
Beck, D. R. and Nicolaides, C. A., Phys. Lett. 65A, 293 (1978).
Cowan, R. D., Los Alamos Scientific Lab. Report No. LA-6679-MS (quoted in Ref. [8]).