Spectral analysis of solar diameter measurements recorded at Calern Observatory astrolabe during two solar cyclesR. Moussaoui, A. Irbah, E. Fossat, J. Borgnino, F. Laclare, C. Delmas and F. X. SchmiderA&A, 374 3 (2001) 1100-1107DOI: https://doi.org/10.1051/0004-6361:20010780