@misc{indiciae3ece7a87b144,
  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/19810008025},
  note = {Source identifier: 19810008025}
}