@misc{indiciaee7d76154bb11,
  title = {Advanced Microbial Check Valve development},
  author = {Colombo, G. V. and Greenley, D. R. and Putnam, D. F. and Sauer, R. L.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820027394},
  note = {Source identifier: 19820027394}
}