@misc{indiciaeab7fdd98efa0,
  title = {Research developing closed loop roll control for magnetic balance systems},
  author = {Covert, E. E. and Haldeman, C. W.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820004211},
  note = {Source identifier: 19820004211}
}