Long-term optical spectrophotometric monitoring of comet C/1995 O1 (Hale-Bopp)
H. Rauer, J. Helbert, C. Arpigny, J. Benkhoff, D. Bockelée-Morvan, H. Boehnhardt, F. Colas, J. Crovisier, O. Hainaut, L. Jorda, M. Kueppers, J. Manfroid and N. Thomas
A&A, 397 3 (2003) 1109-1122
DOI: https://doi.org/10.1051/0004-6361:20021550
