@misc{indiciaecc21b0e71103,
  title = {A relationship between radar backscatter and aerodynamic roughness - Preliminary results},
  author = {Greeley, Ronald and Lancaster, Nicholas and Sullivan, Robert, J. and Saunders, R. Stephen and Theilig, Eilene and Wall, Steven and Dobrovolskis, Anthony},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19880054029},
  note = {Source identifier: 19880054029}
}