@misc{indiciae49f06d21edc4,
  title = {Computer-generated maps of lunar composition from gamma-ray data},
  author = {Arnold, J. R. and Metzger, A. E. and Reedy, R. C.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780057705},
  note = {Source identifier: 19780057705}
}