@misc{indiciaeb754763a2be9,
  title = {Geologic map of Io},
  author = {D.A. Crown and Ronald Greeley and R. A. Craddock and G. G. Schaber},
  year = {1992},
  doi = {10.3133/i2209},
  url = {https://pubs.usgs.gov/publication/i2209},
  note = {Source identifier: i2209}
}