@misc{indiciae925f9d5a9fca,
  title = {Closed Loop Guidance Trade Study for Space Launch System Block-1B Vehicle},
  author = {Von der Porten, Paul and Ahmad, Naeem and Hawkins, Matt and Robin, Pinson and Dukeman, Greg and Fill, Thomas},
  year = {2018},
  url = {https://ntrs.nasa.gov/citations/20180006364},
  note = {Source identifier: 20180006364}
}