@misc{indiciae094639fc8e27,
  title = {New research on bioregenerative air/water purification systems},
  author = {Johnson, Anne H. and Ellender, R. D. and Watkins, Paul J.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910014740},
  note = {Source identifier: 19910014740}
}