Multi-transitional observations of methanol in Comet Hale-Bopp (1995 O1)M. Ikeda, K. Kawaguchi, S. Takakuwa, A. Sakamoto, K. Sunada and T. FuseA&A, 390 1 (2002) 363-367DOI: https://doi.org/10.1051/0004-6361:20020677
