Magnetic field detection in the bright A0-type supergiant HD 92207 S. Hubrig, M. Schöller, A. F. Kholtygin, J. F. González, N. V. Kharchenko and M. Steffen A&A, 546 (2012) L6 Published online: 15 October 2012 DOI: 10.1051/0004-6361/201220265