@misc{indiciaef80701a71f8e,
  title = {Lunar spectral units - A northern hemispheric mosaic},
  author = {Johnson, T. V. and Mosher, J. A. and Matson, D. L.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780057708},
  note = {Source identifier: 19780057708}
}