Search for massive protostar candidates in the southern hemisphere - II. Dust continuum emissionM. T. Beltrán, J. Brand, R. Cesaroni, F. Fontani, S. Pezzuto, L. Testi and S. MolinariA&A, 447 1 (2006) 221-233DOI: https://doi.org/10.1051/0004-6361:20053999