High-resolution OVI absorption line observations at 1.2 1.7 in the bright QSO HE 0515-4414D. Reimers, R. Baade, H.-J. Hagen and S. LopezA&A, 374 3 (2001) 871-877DOI: https://doi.org/10.1051/0004-6361:20010777
1.7 in the bright QSO HE 0515-4414 1.7 in the bright QSO HE 0515-4414