2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10327Studies of damped Lyman-alpha absorption systems in quasar spectra are yielding very interesting results regarding the chemical evolution of these galaxies. We present some preliminary results from such a program.postscript, 4 pages, Contribution to "Cosmic Abundances", the proceedings of the 6th Annual October Astrophysical Conference in Maryland, in pressAstrophysicstext