@article{ChristliebWisotzkiReimersetal.2001,
  author    = {N. Christlieb and Lutz Wisotzki and Dieter Reimers and D. Homeier and D. Koester and Ulrich Heber},
  title     = {The stellar content of the Hamburg/ESO survey : I. Automated selection of DA white dwarfs},
  year      = {2001},
}