@misc{indiciae052c5770d34e,
  title = {Laser tracking for vertical control},
  author = {Dunn, Peter and Torrence, Mark and Pavlis, Erricos and Kolenkiewicz, Ron and Smith, David},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940011080},
  note = {Source identifier: 19940011080}
}