@article{RethwilmDaraiRoesenetal.1987,
  author    = {Axel Rethwilm and G. Darai and A. R{\"o}sen and Bernd Maurer and Rolf M. Fl{\"u}gel},
  title     = {Molecular cloning of the genome of human spumaretrovirus},
  year      = {1987},
}