@misc{indiciae8c5e50d5e8ba,
  title = {General Mission Analysis Tool (GMAT) Architectural Specification. Draft},
  author = {Hughes, Steven P. and Conway, Darrel, J.},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20090004618},
  note = {Source identifier: 20090004618}
}