The protostellar mass limit for 6.7 GHz methanol masers - I. A low-mass YSO surveyV. Minier, S. P. Ellingsen, R. P. Norris and R. S. BoothA&A, 403 3 (2003) 1095-1100DOI: https://doi.org/10.1051/0004-6361:20030465
