@misc{indiciae5027c6e9fd9d,
  title = {Fixed-trim re-entry guidance analysis},
  author = {Gracey, C. and Cliff, E. M. and Lutze, F. H. and Kelley, H. J.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810059680},
  note = {Source identifier: 19810059680}
}