@misc{indiciaebe8d8af65504,
  title = {Martian spectral units derived from ISM imaging spectrometer data},
  author = {Murchie, S. and Mustard, J. and Saylor, R.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940028714},
  note = {Source identifier: 19940028714}
}