@article{FluegelRethwilmMaureretal.1987,
  author    = {Rolf M. Fl{\"u}gel and Axel Rethwilm and Bernd Maurer and Gholamreza Darai},
  title     = {Nucleotide sequence analysis of the env gene and its flanking regions of the human spumaretrovirus reveals two novel genes},
  year      = {1987},
}