@misc{indiciaeb5c5cc3fb7bb,
  title = {Building a Shared Definitional Model of Long Duration Human Spaceflight},
  author = {Arias, Diana and Orr, Martin and Whitmire, Alexandra and Leveton, Lauren and Sandoval, Luis},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20130000756},
  note = {Source identifier: 20130000756}
}