@misc{indiciaebc2297dd1dc6,
  title = {Planimetric Martian triangulations},
  author = {D.W. Arthur and D.K. McMacken},
  year = {1976},
  doi = {10.3133/ofr76767},
  url = {https://pubs.usgs.gov/publication/ofr76767},
  note = {Source identifier: ofr76767}
}