@misc{indiciae2b5a99a22c39,
  title = {Variable gravity research facility},
  author = {Allan, Sean and Ancheta, Stan and Beine, Donna and Cink, Brian and Eagon, Mark and Eckstein, Brett and Luhman, Dan and Mccowan, Daniel and Nations, James and Nordtvedt, Todd},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890009953},
  note = {Source identifier: 19890009953}
}