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Astron. Astrophys. 364, 217-224 (2000) AcknowledgementsWe thank the technical staffs and telescope operators of both OHP and CFHT for their support during the long-term observations which have led to these results. We are grateful to Gilles Chabrier, Isabelle Baraffe, France Allard and Maria Rosa Zapatero Osorio for many useful discussions. We are also indebted to Lionel Siess for providing his models prior to publication. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 2000 Online publication: December 15, 2000 ![]() |