@misc{indiciaef4cbc048e526,
  title = {Laser beacon collision avoidance systems},
  author = {Sweet, L. M. and Miles, R. B. and Wong, E. and Tomeh, M.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810013479},
  note = {Source identifier: 19810013479}
}