Improved data for solar flare X-ray spectral analysis K. J. H. Phillips, J. A. Rainnie, L. K. Harra, J. Dubau, F. P. Keenan and N. J. Peacock A&A, 416 2 (2004) 765-773 Published online: 27 February 2004 DOI: 10.1051/0004-6361:20034315