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1 Introduction
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2 HS 0507+0434
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3 Observations and data reduction
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4 Periodicities in the light curve
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5 Periodicities in the line-of-sight velocities
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6 Chromatic amplitudes
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7 Comparison with pulsation theory
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8 Squaring the circle
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Appendix A: Corrections for instrumental flexure and differential refraction
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Appendix B: HS 0507A
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References
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