The absorption spectrum of the QSO PKS () at high resolutionV. D'Odorico, S. Cristiani, S. D'Odorico, A. Fontana and E. GiallongoAstron. Astrophys. Suppl. Ser., 127 2 (1998) 217-232DOI: https://doi.org/10.1051/aas:1998104