Jorda, L. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Wink, J., Bockelée-Morvan, D., Despois, D., Colom, P., Biver, N., Crovisier, J., et al. (1997). Evidences for extended sources and temporal modulations in molecular observations of C/1995 O1 (Hale-Bopp) at the IRAM interferometer. Earth, Moon and Planets, 78, 63-63.