Atomic carbon in PSS 2322+1944, a quasar at redshift J. Pety, A. Beelen, P. Cox, D. Downes, A. Omont, F. Bertoldi and C. L. Carilli A&A, 428 3 (2004) L21-L24 Published online: 07 December 2004 DOI: 10.1051/0004-6361:200400096