Dust emissivity in the submm/mm - SCUBA and SIMBA observations of Barnard 68 S. Bianchi, J. Gonçalves, M. Albrecht, P. Caselli, R. Chini, D. Galli and M. Walmsley A&A, 399 3 (2003) L43-L46 Published online: 14 February 2003 DOI: 10.1051/0004-6361:20030078