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Astron. Astrophys. 320, 757-775 (1997) AcknowledgementsWe wish to thank H. Richer and G. Fahlman for their collaboration in taking the obervations at the CFHT. We are grateful to the CFHT and the Calar Alto Observatories for the kind hospitality and support provided during the observations. We are specially indebted to K. Janes for providing us with his independent sample of M 3 stars in advance of publication, which has allowed us to perform important tests and corrections, and M.Bolte for providing us with his data on Blue Stragglers stars. We are pleased to acknowledge R.T. Rood for his critical reading of the manuscript and several useful comments and suggestions. This work has been supported by the Italian Ministry for Research (MURST). ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: June 30, 1998 ![]() |