Rotation velocities of white dwarfs - III. DA stars with convective atmospheres C. A. Karl, R. Napiwotzki, U. Heber, S. Dreizler, D. Koester and I. N. Reid A&A, 434 2 (2005) 637-647 Published online: 11 April 2005 DOI: 10.1051/0004-6361:20041437