Millimetre continuum observations of comet C/2009 P1 (Garradd)J. Boissier, D. Bockelée-Morvan, O. Groussin, P. Lamy, N. Biver, J. Crovisier, P. Colom, R. Moreno, L. Jorda and V. PiétuA&A, 557 (2013) A88DOI: https://doi.org/10.1051/0004-6361/201321372