@misc{indiciaeb1864a57133c,
  title = {Minimum weight shield synthesis for space vehicles},
  author = {Celnik, J. and Certaine, J. and Krumbein, A. D. and Nakache, F. R.},
  year = {1964},
  url = {https://ntrs.nasa.gov/citations/19650002868},
  note = {Source identifier: 19650002868}
}