1. Caderni, N. et al., 1977, Phys. Rev. D, 16, 2424.
2. Draine, B.T., Lee, H.M., 1984, Astrophys. J., 285, 89.
3. Hayakawa, S. et al., 1987, Publ. Astr. Soc. Japan, 39, 941.
4. Panek, M., Rudak, B., 1988, Mon. Not. R. Astr. Soc., 235, 1169.
5. Rudak, B., Panek, M., 1989, in NATO ARW “The Epoch of Galaxy Formation,” ed. C. Frenk.