@misc{indiciaee32cc6f6d7d9,
  title = {Improved microbial-check-valve resins},
  author = {Colombo, G. V. and Putnam, D. F.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19790000376},
  note = {Source identifier: 19790000376}
}