@misc{indiciaea8db437f6c39,
  title = {Water system microbial check valve development},
  author = {Colombo, G. V. and Greenley, D. R. and Putnam, D. F.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790003562},
  note = {Source identifier: 19790003562}
}