Submm/FIR CO line emission from the disk of the Class I protostar EL 29 C. Ceccarelli, A. C. A. Boogert, A. G. G. M. Tielens, E. Caux, M. R. Hogerheijde and B. Parise A&A, 395 3 (2002) 863-871 Published online: 18 November 2002 DOI: 10.1051/0004-6361:20021344