M31N 2008-05d: a M 31 disk nova with a dipping supersoft X-ray light curve M. Henze, W. Pietsch, F. Haberl, M. Hernanz, G. Sala, M. Della Valle and H. Stiele A&A, 544 (2012) A44 Published online: 25 July 2012 DOI: 10.1051/0004-6361/201219488