Extended D2CO emission: The smoking gun of grain surface-chemistryC. Ceccarelli, L. Loinard, A. Castets, A. G. G. M. Tielens, E. Caux, B. Lefloch and C. VastelA&A, 372 3 (2001) 998-1004DOI: https://doi.org/10.1051/0004-6361:20010559