A spectroscopic study of the Themis familyM. Florczak, D. Lazzaro, T. Mothé-Diniz, C. A. Angeli and A. S. BetzlerAstron. Astrophys. Suppl. Ser., 134 3 (1999) 463-471DOI: https://doi.org/10.1051/aas:1999150
