@misc{indiciae919715efa05d,
  title = {Phosphoric Acid Fuel Cell Technology Status},
  author = {Simons, S. N. and King, R. B. and Prokopius, P. R.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820011796},
  note = {Source identifier: 19820011796}
}