Water ice deuteration: a tracer of the chemical history of protostars V. Taquet, P. S. Peters, C. Kahane, C. Ceccarelli, A. López-Sepulcre, C. Toubin, D. Duflot and L. Wiesenfeld A&A, 550 (2013) A127 Published online: 06 February 2013 DOI: 10.1051/0004-6361/201220084