@misc{indiciaee6715a0ab203,
  title = {Performance analysis and simulation of the SPS reference phase control system},
  author = {Lindsey, W. C. and Chie, C. M.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19820004671},
  note = {Source identifier: 19820004671}
}