@misc{indiciaefbe91692c682,
  title = {SERT AND EARLY ELECTRIC PROPULSION SYSTEMS},
  author = {Childs, J. H. and Cybulski, R. J.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19630021683},
  note = {Source identifier: 19630021683}
}