@misc{indiciae982f939c8804,
  title = {Planetary Regolith Microstructure: An Unexpected Opposition Effect Result},
  author = {Nelson, R. M. and Hapke, B. W. and Smythe, W. D. and Hale, A. S. and Piatek, J. L.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040062367},
  note = {Source identifier: 20040062367}
}