@misc{indiciae040126816d09,
  title = {Collision avoidance in space},
  author = {Kessler, D. J. and Cour-Palais, B. G. and Taylor, R. E. and Landry, P. M.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800051684},
  note = {Source identifier: 19800051684}
}