@misc{indiciae75a8e5ab4669,
  title = {Geologic map of the Osiris (Jg-12) and Apsu Sulci (Jg-13) quadrangles of Ganymede},
  author = {D.E. Wilhelms},
  year = {1997},
  doi = {10.3133/i2442},
  url = {https://pubs.usgs.gov/publication/i2442},
  note = {Source identifier: i2442}
}