@misc{indiciae4fd1b7c7d0e5,
  title = {Regenerative fuel cell combines high efficiency with low cost},
  author = {Doyle, H. and Frank, H. and Stephens, C. W.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650000361},
  note = {Source identifier: 19650000361}
}