Flare observation of the Sun as a star by SUMER/SOHO in the hydrogen Lyman continuum P. Lemaire, P. Gouttebroze, J.-C. Vial, W. Curdt, U. Schühle and K. Wilhelm A&A, 418 2 (2004) 737-742 Published online: 09 April 2004 DOI: 10.1051/0004-6361:20034405