A sensitive search for CO J = 1–0 emission in 4C 41.17: high-excitation molecular gas at z = 3.8P. P. Papadopoulos, T. R. Greve, R. J. Ivison and C. De BreuckA&A, 444 3 (2005) 813-819DOI: https://doi.org/10.1051/0004-6361:20053611
