Detection of strongly processed ice in the central starburst of NGC 4945 H. W. W. Spoon, A. F. M. Moorwood, K. M. Pontoppidan, J. Cami, M. Kregel, D. Lutz and A. G. G. M. Tielens A&A, 402 2 (2003) 499-507 Published online: 14 April 2003 DOI: 10.1051/0004-6361:20030290