Low-resolution spectroscopy and spectral energy distributions of selected sources towards σ OrionisJ. A. Caballero, L. Valdivielso, E. L. Martín, D. Montes, S. Pascual and P. G. Pérez-GonzálezA&A, 491 2 (2008) 515-523DOI: https://doi.org/10.1051/0004-6361:200810616
