SOPHIE velocimetry of Kepler transit candidates - XVIII. Radial velocity confirmation, absolute masses and radii, and origin of the Kepler-419 multiplanetary system
J. M. Almenara, R. F. Díaz, G. Hébrard, R. Mardling, C. Damiani, A. Santerne, F. Bouchy, S. C. C. Barros, I. Boisse, X. Bonfils, A. S. Bonomo, B. Courcol, O. Demangeon, M. Deleuil, J. Rey, S. Udry and P. A. Wilson