2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6458We are carrying on a near-IR very low resolution spectroscopic follow-up in parallel with XMM-Newton observations of a complete sample of ~30 bright (K'<18.5) Extremely Red Objects (EROs) selected over an area of 360 arcmin^2 of the MUNICS survey. We here present the preliminary results of the spectroscopic and X-ray data analysis.2 pages, "Multiwavelength Cosmology" Mykonos, June 2003, conference proceedingsAstrophysicstext