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Continue to ChatPhotometric calibration of the [alpha/Fe] element: I. Calibration with U BV photometry - https://avesis.istanbul.edu.tr/publication/details/bd1169ea-dbbb-4f57-9ab4-e2579dd8b04f/photometric-calibration-of-the-alpha-fe-element-i-calibration-with-u-bv-photometry