Star-forming protoclusters associated with methanol masersV. Minier, M. G. Burton, T. Hill, M. R. Pestalozzi, C. R. Purcell, G. Garay, A. J. Walsh and S. LongmoreA&A, 429 3 (2005) 945-960DOI: https://doi.org/10.1051/0004-6361:20041137