The SUMER spectral atlas of solar-disk features W. Curdt, P. Brekke, U. Feldman, K. Wilhelm, B. N. Dwivedi, U. Schühle and P. Lemaire A&A, 375 2 (2001) 591-613 Published online: 15 August 2001 DOI: 10.1051/0004-6361:20010364