@misc{indiciae9dce1da4d63d,
  title = {Better, Faster, Cheaper Planetary Missions Using Solar Electric Propulsion},
  author = {Williams, S. N. and Carroll, V. C.},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/20060036696},
  note = {Source identifier: 20060036696}
}