@misc{indiciae37be50af5fef,
  title = {Ammonia-compatible elastomers and alloys},
  author = {Bantrell, M. T. and Rietdorf, D. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770000394},
  note = {Source identifier: 19770000394}
}