@misc{indiciae2490f0637c9f,
  title = {Propulsion Risk Reduction Activities for Non-Toxic Cryogenic Propulsion},
  author = {Smith, Timothy D. and Klem, Mark D. and Fisher, Kenneth},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20100033741},
  note = {Source identifier: 20100033741}
}