2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52716We summarize recent progress in constructing orientifolds of Gepner models, a phenomenologically interesting class of exactly solvable string compactifications with viable gauge groups and chiral matter.LaTeX, Contribution to the proceedings of the conference "SUSY 2004", Tsukuba, June 17-23, 2004High Energy Physics - Theorytext