@misc{indiciaed7cf1c76d316,
  title = {Planetary astronomy},
  author = {Chapman, C. R. and Davis, D. R. and Greenberg, R. and Hartmann, W. K.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870003015},
  note = {Source identifier: 19870003015}
}