@misc{indiciaec54bfbe6eabc,
  title = {Space station life support system definition},
  author = {Byke, R. M. and Cody, J. C. and Nelson, W. G.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710055683},
  note = {Source identifier: 19710055683}
}