Detection of a magnetic field in three old and inactive solar-like planet-hosting stars L. Fossati, O. Kochukhov, J. S. Jenkins, R. J. Stancliffe, C. A. Haswell, A. Elmasli and E. Nickson A&A, 551 (2013) A85 Published online: 27 February 2013 DOI: 10.1051/0004-6361/201220997