SOPHIE+: First results of an octagonal-section fiber for high-precision radial velocity measurementsF. Bouchy, R. F. Díaz, G. Hébrard, L. Arnold, I. Boisse, X. Delfosse, S. Perruchot and A. SanterneA&A, 549 (2013) A49DOI: https://doi.org/10.1051/0004-6361/201219979
