2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106825Although published in 1995, the Gauss-Seidel method for solving the non-LTE radiative transfer problem has deserved too little attention in the astrophysical community yet. Further tests of the performances and of the accuracy of the numerical scheme are provided.3 pages, 2 figures, poster SF2A-2004, published by EDP-Sciences Conference SeriesAstrophysicstext