@misc{indiciae83b2939d5d5e,
  title = {Method and apparatus for battery charge control Patent},
  author = {Hennigan, T. J. and Potter, N. H. and Sizemore, K. O.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19710009963},
  note = {Source identifier: 19710009963}
}