Search for CO gas in Pluto, Centaurs and Kuiper Belt objects at radio wavelengthsD. Bockelée-Morvan, E. Lellouch, N. Biver, G. Paubert, J. Bauer, P. Colom and D. C. LisA&A, 377 1 (2001) 343-353DOI: https://doi.org/10.1051/0004-6361:20011040