Submillimeter imaging spectroscopy of the Horsehead nebula S. D. Philipp, D. C. Lis, R. Güsten, C. Kasemann, T. Klein and T. G. Phillips A&A, 454 1 (2006) 213-219 Published online: 03 July 2006 DOI: 10.1051/0004-6361:20053533