@article{SanderTodtHainichetal.2014,
  author    = {Andreas Alexander Christoph Sander and Helge Tobias Todt and Rainer Hainich and Wolf-Rainer Hamann},
  title     = {The Wolf-Rayet stars in M31 I. Analysis of the late-type WN stars},
  journal   = {Astronomy and astrophysics : an international weekly journal},
  volume    = {563},
  doi       = {10.1051/0004-6361/201323240},
  year      = {2014},
}