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Astron. Astrophys. 358, 65-71 (2000) AcknowledgementsWe thank Dr. A. Sievers from IRAM (Granada) for his support with additional calibration. We are very grateful to Dr. P.B. Alton for making his JCMT data available to us. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 2000 Online publication: June 26, 2000 ![]() |