Detection of doubly-deuterated methanol in the solar-type protostar IRAS 16293-2422 B. Parise, C. Ceccarelli, A. G. G. M. Tielens, E. Herbst, B. Lefloch, E. Caux, A. Castets, I. Mukhopadhyay, L. Pagani and L. Loinard A&A, 393 3 (2002) L49-L53 Published online: 01 October 2002 DOI: 10.1051/0004-6361:20021131