@misc{indiciae396385ff0995,
  title = {Regulated dc-to-dc converter for voltage step-up or step-down with input-output isolation},
  author = {Feng, S. Y. and Wilson, T. G.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740002936},
  note = {Source identifier: 19740002936}
}