HD 203608, a quiet asteroseismic target in the old galactic diskB. Mosser, S. Deheuvels, E. Michel, F. Thévenin, M. A. Dupret, R. Samadi, C. Barban and M. J. GoupilA&A, 488 2 (2008) 635-642DOI: https://doi.org/10.1051/0004-6361:200810011