@misc{indiciaeda77da7c4998,
  title = {Spaceborne Earth Applications Ranging system (SPEAR)},
  author = {Vonbun, F. O. and Kahn, W. D. and Argentiero, P. D. and Koch, D. W. and Eng, K. J.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760008466},
  note = {Source identifier: 19760008466}
}