Improved constraints on Neptune's atmosphere from submillimetre-wavelength observations A. Marten, H. E. Matthews, T. Owen, R. Moreno, T. Hidayat and Y. Biraud A&A, 429 3 (2005) 1097-1105 Published online: 05 January 2005 DOI: 10.1051/0004-6361:20041695