Optical spectra of selected Chamaeleon I young stellar objectsC. Saffe, M. Gómez, S. Randich, D. Mardones, P. Caselli, P. Persi and G. RaccaA&A, 409 3 (2003) 993-1005DOI: https://doi.org/10.1051/0004-6361:20031150