@misc{indiciae931e3d5a911a,
  title = {An LDEF follow-on spacecraft concept},
  author = {Keller, Vernon and Breazeale, Larry and Perkinson, Don and Kinard, William H.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/19950021244},
  note = {Source identifier: 19950021244}
}