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Astron. Astrophys. 333, 732-740 (1998) AcknowledgementsI thank all staff of the SVST for assistance during the observations, Göran Scharmer also for comments on the manuscript, Martin Asplund and Rob Rutten are thanked for discussions, and Åke Nordlund for help with the granulation models. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1998 Online publication: April 20, 1998 ![]() |