@misc{indiciae5c66e3484396,
  title = {Venus: Preliminary topographic and surface imaging results from the Pioneer Orbiter},
  author = {G.H. Pettengill and P.G. Ford and W.E. Brown and W.M. Kaula and H. Masursky and E. Eliason and G.E. McGill},
  year = {1979},
  doi = {10.1126/science.205.4401.90},
  url = {https://pubs.usgs.gov/publication/70012254},
  note = {Source identifier: 70012254}
}