@misc{indiciaed6ebb884f018,
  title = {Preliminary Stratigraphic Basis for Geologic Mapping of Venus},
  author = {Basilevsky, A. T. and Head, J. W.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19980148009},
  note = {Source identifier: 19980148009}
}