@misc{indiciae6de3ba426bc9,
  title = {Terrapin technologies manned Mars mission proposal},
  author = {Amato, Michael and Bryant, Heather and Coleman, Rodney and Compy, Chris and Crouse, Patrick and Crunkleton, Joe and Hurtado, Edgar and Iverson, Eirik and Kamosa, Mike and Kraft, Lauri},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900016711},
  note = {Source identifier: 19900016711}
}