@misc{indiciae275b3c0f9cb3,
  title = {Robust perturbation guidance for the advanced launch system},
  author = {Speyer, Jason L. and Jarmark, Bernt S. A.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890066716},
  note = {Source identifier: 19890066716}
}