Submillimetric spectroscopic observations of volatiles in comet C/2004 Q2 (Machholz) M. de Val-Borro, P. Hartogh, C. Jarchow, M. Rengel, G. L. Villanueva, M. Küppers, N. Biver, D. Bockelée-Morvan and J. Crovisier A&A, 545 (2012) A2 Published online: 30 August 2012 DOI: 10.1051/0004-6361/201219172