1. Forrest, D. J. et al. Solar Phys. 65, 15–23 (1980).
2. Share, G. H. et al. in Gamma Ray Transients and Related Astrophysical Phenomena (eds Lingenfelter, R. E., Hudson, H. S. & Worrall, D. M.) 45–53 (American Institute of Physics, New York, 1982).
3. Solar Geophysical Data—Prompt and Comprehensive Reps Nos 426–469 (NOAA, Boulder, 1980–83).
4. Solar Geophysical Data—Prompt and Comprehensive Reps No. 470, Pt 1, 13 (NOAA, Boulder, 1983).
5. Lin, R. P. & Ramaty, R. in Gamma Ray Spectroscopy in Astrophysics, 76–96 (NASA TM 79619, 1978).