  A near-IR low-resolution spectroscopic follow-up of a complete sample of
K<18.5 EROs has started at the 3.5 m Telescopio Nazionale Galileo (TNG, La
Palma, Canary Islands) by using a prism disperser AMICI. The sample has been
selected from the Munich Near-IR Cluster Survey (MUNICS). The project aims at
revealing massive galaxies at z>1.2 and at estimating their spatial density to
put constraints on the galaxy formation and evolution models. In this
proceeding, the preliminary analysis of the first spectra obtained is
presented.
