@misc{indiciaeed15c37d36f7,
  title = {Human Missions to Mars Orbit, Phobos, and Mars Surface Using 100-kWe-Class Solar Electric Propulsion},
  author = {Price, Humphrey W. and Woolley, Ryan C. and Strange, Nathan J. and Baker, John D.},
  year = {2014},
  url = {https://ntrs.nasa.gov/citations/20150008510},
  note = {Source identifier: 20150008510}
}