@misc{indiciae1875707a4a1f,
  title = {The Space Station Prototype Program - The development of a regenerative life support system for extended-duration missions.},
  author = {Willis, N. C., Jr. and Neel, J. M.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720061527},
  note = {Source identifier: 19720061527}
}