1. Akhmedov, Sh. B., Bogod, V. M., Borovik, V. N., Willson, R. F., Gelfreikh, G. B., Dikij, V. N., Korzhavin, A. N., Lang, K. R., and Petrov, Z. E.: 1985, Preprint No. 19L, Special Astrophys. Obs. AS USSR, Leningrad.
2. Akhmedov, Sh. B., Bogod, V. M., Gelfreikh, G.B., Hildebrandt, J., and Krüger, A.: 1986, Contr. Astron. Obs. Skalnaté Pleso 15, 339.
3. Akhmedov, Sh. B., Gelfreikh, G. B., Fürstenberg, F., Hildebrandt, J., and Krüger, A.: 1983, Solar Phys. 88, 103.
4. Apushkinskij, G. P. and Nagnibeda, V. G.: 1972, in Radioastronomical Observations of the Solar Eclipse of 20 May 1966, Nauka, Moscow, p. 33 (in Russian).
5. Basri, G. S., Linsky, J. L., Bartoe, J.-D. F., Brueckner, G. E., and van Hoosier, M. E.: 1979, Astrophys. J. 230, 924.