@misc{indiciae3c6f21042c4e,
  title = {Recharge unit provides for optimum recharging of battery cells},
  author = {Baer, D. and Ford, F. E.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680000273},
  note = {Source identifier: 19680000273}
}