SOFT X-RAY IMAGES OF THE SOLAR CORONA USING NORMAL INCIDENCE OPTICS M. E. BRUNER, B. M. HAISCH, W. A. BROWN, L. W. ACTON et J. H. UNDERWOODJ. Phys. Colloques, 49 C1 (1988) C1-115-C1-118DOI: https://doi.org/10.1051/jphyscol:1988124