1. Abrikosov, A.A. 1960 Soviet Phys. JETP
12 1254.
2. Bahcall, J.N. 1984. Astrophys. J.
276, 169.
3. Barrat, J.L., Hansen, J.P., and Mochkovitch, R. 1988. Astron. Astrophys.
199, L15.
4. Brush, S.G., Sahlin, H.L., and Teller, E. 1966, J. Chem. Phys.
45, 2102.
5. D’Antona, F., and Mazzitelli, I. 1978. Astron. Astrophys.
66, 453.