Non-gray rotating stellar models and the evolutionary history of the Orion Nebular ClusterN. R. Landin, P. Ventura, F. D'Antona, L. T. S. Mendes and L. P. R. VazA&A, 456 1 (2006) 269-282DOI: https://doi.org/10.1051/0004-6361:20054011