1. Baglin, A., 1988, private communication.
2. Baglin, A., Morel, P. and Schatzman, E. 1985, Astron. Astrophys.
149, 309.
3. Baglin, A. and Lebreton, Y. 1990, in Inside the Sun, G. Berthomieu and M. Cribier Eds., Kluwer, p. 437.
4. Balachandran, S., Lambert, D. L. and Stauffer, J. R. 1988, Astrophys. J.
333, 267.
5. Benz, W., Mayor, M., and Mermillod, J. C. 1984, Astron. Astrophys.
138, 93.