@misc{indiciaec3bfc5e90f84,
  title = {In-Space Propulsion Options for Mars Sample Return Missions},
  author = {Donahue, Benjamin and Cupples, Michael and Green, Shaun and Coverstone, Victoria and Woo, Byoungsam},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040034747},
  note = {Source identifier: 20040034747}
}