@article{WernerDreizlerHeberetal.1995,
  author    = {Werner, Klaus and Dreizler, S. and Heber, Ulrich and Rauch, Thomas and Wisotzki, Lutz and Hagen, H.-J.},
  title     = {Discovery of two hot DO white dwarfs exhibiting ultrahigh-excitation absorption lines},
  year      = {1995},
  language  = {en}
}