Physical Properties of Low-Luminosity Galaxies at z ~ 2
  We report the results obtained from ISAAC/VLT near-IR spectroscopy of two low-luminosity z ~ 1.9 galaxies located in the core of the lensing cluster AC114. The amplification factor allowed to obtain, for the first time, physical properties (SFR, abundance ratios, mass, etc) of star-forming galaxies, 1 to 2 magnitudes fainter than in previous studies of Lyman-break galaxies at z ~ 3. 
M. Lemoine-Busserolle, T. Contini, R. Pello, J.-F. Le Borgne, J.-P.   Kneib (LAOMP, Toulouse) & C. Lidman (ESO, Chile)