Emission of CO, C I, and C II in W3 Main C. Kramer, H. Jakob, B. Mookerjea, N. Schneider, M. Brüll and J. Stutzki A&A, 424 3 (2004) 887-903 Published online: 06 September 2004 DOI: 10.1051/0004-6361:20047085