@misc{indiciae3c139924ce58,
  title = {DC to DC converter regulated by a constant- frequency duty-cycle generator.},
  author = {Babaa, I. M. H. and Wilson, T. G. and Yu, Y.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690044465},
  note = {Source identifier: 19690044465}
}