@misc{indiciae8ba3f20cf792,
  title = {Closed Loop Guidance Trade Study for Space Launch System Block-1B Vehicle},
  author = {Von der Porten, Paul and Ahmad, Naeem and Hawkins, Matt},
  year = {2018},
  url = {https://ntrs.nasa.gov/citations/20180002025},
  note = {Source identifier: 20180002025}
}