@misc{indiciae1389be96e838,
  title = {A long duration orbital simulator /LDOS/ utilized in technical planning activities},
  author = {Land, W. H., Jr. and Roach, J. F.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710055763},
  note = {Source identifier: 19710055763}
}