Detection of diffuse interstellar bands in M 31 M. A. Cordiner, N. L. J. Cox, C. Trundle, C. J. Evans, I. Hunter, N. Przybilla, F. Bresolin and F. Salama A&A, 480 1 (2008) L13-L16 Published online: 25 January 2008 DOI: 10.1051/0004-6361:20079309