@article{vanLoonBaileyTattonetal.2013,
  author    = {J. Th. van Loon and M. Bailey and B. L. Tatton and Jesus Maiz Apellaniz and P. A. Crowther and A. de Koter and C. J. Evans and V. Henault-Brunet and I. D. Howarth and Philipp Richter and Hugues Sana and Sergio Simon D{\´i}az and W. Taylor and N. R. Walborn},
  title     = {The VLT-FLAMES tarantula survey IX. - the interstellar medium seen through diffuse interstellar bands and neutral sodium},
  journal   = {Astronomy and astrophysics : an international weekly journal},
  volume    = {550},
  number    = {9},
  doi       = {10.1051/0004-6361/201220210},
  year      = {2013},
}