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Astron. Astrophys. 318, L35-L38 (1997) AcknowledgementsWe would like to thank Hans van Someren Gréve and the WSRT staff for carrying out these non-standard observations, and Bauke Kramer, Tony Foley and Geert Kuiper for assistance in retrieving the data from the WSRT archive. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: July 8, 1998 ![]() |