@misc{indiciaea5d5a15f150b,
  title = {Power and Propulsion Element (PPE) Spacecraft Reference Trajectory Document},
  author = {Melissa L Mcguire and Steven L Mccarty and Laura M Burke},
  year = {2020},
  url = {https://ntrs.nasa.gov/citations/20200002143},
  note = {Source identifier: 20200002143}
}