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Astron. Astrophys. 322, 147-154 (1997) AcknowledgementsWe thank Dr. Álvaro Giménez, Dr. Antonio Claret, Dr. Georges Meynet and Dr. Daniel Schaerer for their useful suggestions. This work has been supported by CICYT under contract PB95-0185 and by the Acciones Integradas Hispano-Francesas (HF95/328B). R.A. acknowledges financial support from the Ministerio de Educación y Ciencia. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: June 30, 1998 ![]() |